GMAT真题

1:


　　If 2 different representatives are to be selected at random from a group of 10 employees and if p is the probability that both representatives selected will be women, is p > ?


　　(1) More than of the 10 employees are women.


　　(2) The probability that both representatives selected will be men is less than .


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


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　　2:


　　For all integers n, the function f is defined by f (n)=an, where a is a constant. What is the value of f (1)?


　　(1) f (2)=100


　　(2) f (3)=-1,000


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　3:


　　Mary persuaded n friends to donate $500 each to her election campaign, and then each of these n friends persuaded n more people to donate $500 each to Mary’s campaign. If no one donated more than once and if there were no other donations, what was the value of n?


　　(1) The first n people donated of the total amount donated.


　　(2) The total amount donated was $120,000.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


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　　4:


　　If p is the product of the integers from 1 to 30, inclusive, what is the greatest integer k for which 3k is a factor of p?


　　A. 10


　　B. 12


　　C. 14


　　D. 16


　　E. 18


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　　5:


　　If x, y, and k are positive numbers such that ( )(10) + ( )(20)=k and if x < y, which of the following could be the value of k?


　　A. 10


　　B. 12


　　C. 15


　　D. 18


　　E. 30


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　　6:


　　Tom, Jane, and Sue each purchased a new house. The average (arithmetic mean) price of the three houses was $120,000. What was the median price of the three houses?


　　(1) The price of Tom’s house was $110,000.


　　(2) The price of Jane’s house was $120,000.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　7:


　　If the sequence x1, x2, x3, …, xn, … is such that x1=3 and xn+1=2xn – 1 for n ≥ 1, then x20 – x19=


　　A. 219


　　B. 220


　　C. 221


　　D. 220 - 1


　　E. 221 - 1


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　　8:


　　If the units digit of the three-digit positive integer k is nonzero, what is the tens digit of k?


　　(1) The tens digit of k + 9 is 3.


　　(2) The tens digit of k + 4 is 2.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　9:


　　rst


　　uvw


　　xyz


　　Each of the letters in the table above represents one of the numbers 1, 2, or 3, and each of these numbers occurs exactly once in each row and exactly once in each column. What is the value of r?


　　(1) v + z=6


　　(2) s + t + u + x=6


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


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　　10:


　　Is ?x?< 1?


　　(1) ?x + 1?=2?x - 1?


　　(2) ?x - 3? ≠ 0


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


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　　11:


　　A box contains 10 light bulbs, fewer than half of which are defective. Two bulbs are to be drawn simultaneously from the box. If n of the bulbs in box are defective, what is the value of n?


　　(1) The probability that the two bulbs to be drawn will be defective is 1/15.


　　(2) The probability that one of the bulbs to be drawn will be defective and the other will not be defective is 7/15.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　12:


　　The product of the units digit, the tens digit, and the hundreds digit of the positive integer m is 96. What is the units digit of m?


　　(1) m is odd.


　　(2) The hundreds digit of m is 8.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


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　　13:


　　If a certain coin is flipped, the probability that the coin will land heads is 1/2. If the coin is flipped 5 times, what is the probability that it will land heads up on the first 3 flips and not on the last 2 flips?


　　A. 3/5


　　B. 1/2


　　C. 1/5


　　D. 1/8


　　E. 1/32


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　　14:


　　If positive integer x is a multiple of 6 and positive integer y is a multiple of 14, is xy a multiple of 105?


　　(1) x is a multiple of 9.


　　(2) y is a multiple of 25.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


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　　15:


　　Seven different numbers are selected from the integers 1 to 100, and each number is divided by 7. What is the sum of the remainders?


　　(1) The range of the seven remainders is 6.


　　(2) The seven numbers selected are consecutive integers.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


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　　16:


　　150, 200, 250, n


　　Which of the following could be the median of the 4 integers listed above?


　　I. 175


　　II. 215


　　III. 235


　　A. I only


　　B. II only


　　C. I and II only


　　D. II and III only


　　E. I, II, and III


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　　17:


　　If a certain machine produces bolts at a constant rate, how many seconds will it take the machine to produce 300 bolts?


　　(1) It takes the machine 56 seconds to produce 40 bolts.


　　(2) It takes the machine 1.4 seconds to produce 1 bolt.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


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　　18:


　　If an integer n is to be chosen at random from the integers 1 to 96, inclusive, what is the probability that n(n + 1)(n + 2) will be divisible by 8?


　　A. B. C. D. E.


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　　19:


　　A total of $60,000 was invested for one year. Part of this amount earned simple annual interest at the rate of x percent per year, and the rest earned simple annual interest at the rate of y percent per year. If the total interest earned by the $60,000 for that year was $4,080, what is the value of x?


　　(1) x=(2) The ratio of the amount that earned interest at the rate of x percent per year to the amount that earned interest at the rate of y percent per year was 3 to 2.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


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　　20:


　　What is the probability that a student randomly selected from a class of 60 students will be a male who has brown hair?


　　(1) One-half of the students have brown hair.


　　(2) One-third of the students are males.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


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　　21:


　　At a certain company, each employee has a salary grade s that is at least 1 and at most 5. Each employee receives an hourly wage p, in dollars, determined by the formula p=9.50 + 0.25(s – 1). An employee with a salary grade of 5 receives how many more dollars per hour than an employee with a salary grade of 1?


　　A. $0.50


　　B. $1.00


　　C. $1.25


　　D. $1.50


　　E. $1.75


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　　22:


　　The annual rent collected by a corporation from a certain building was x percent more in 1998 than in 1997 and y percent less in 1999 than in 1998. Was the annual rent collected by the corporation from the building more in 1999 than in 1997?


　　(1) x > y


　　(2) < x – y


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


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　　23:


　　If n is an integer and 100 < n <200, what is the value of n?


　　(1) is an odd integer.


　　(2) is an even integer.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


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　　24


　　If 2 different representatives are to be selected at random from a group of 10 employees and if p is the probability that both representatives selected will be women, is p > ?


　　(1) More than of the 10 employees are women.


　　(2) The probability that both representatives selected will be men is less than .


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　Answer:


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　　25:


　　Material A costs $3 per kilogram, and material B costs $5 per kilogram. If 10 kilograms of material K consists of x kilograms of material A and y kilograms of material B, is x > y?


　　(1) y > 4


　　(2) The cost of the 10 kilograms of material K is less than $40.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　Answer:


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　　26:


　　What is the value of the integer n?


　　(1) n(n + 2)=15


　　(2) (n + 2)n=125


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　Answer:


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　　27:


　　Which of the following fractions has a decimal equivalent that is a terminating decimal?


　　A. B. C. D. E. Answer:


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　　28:


　　Theater M has 25 rows with 27 seats in each row. How many of the seats were occupied during a certain show?


　　(1) During the show, there was an average (arithmetic mean) of 10 unoccupied seats per row for the front 20 rows.


　　(2) During the show, there was an average (arithmetic mean) of 20 unoccupied seats per row for the back 15 rows.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　Answer:


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　　29:


　　This year Henry will save a certain amount of his income, and he will spend the rest. Next year Henry will have no income, but for each dollar that he saves this year, he will have 1 + r dollars available to spend. In terms of r, what fraction of his income should Henry save this year so that next year the amount he was available to spend will be equal to half the amount that he spends this year?


　　A. B. C. D. E. Answer:


　　30:


　　What is the ratio of the average (arithmetic mean) height of students in class X to the average height of students in class Y?


　　(1) The average height of the students in class X is 120 centimeters.


　　(2) The average height of the students in class X and class Y combined is 126 centimeters.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　Answer:


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　　31:


　　If a committee of 3 people is to be selected from among 5 married couples so that the committee does not include two people who are married to each other, how many such committees are possible?


　　A. 20


　　B. 40


　　C. 50


　　D. 80


　　E. 120


　　Answer:


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　　32:


　　What is the remainder when the positive integer n is divided by 3?


　　(1) The remainder when n is divided by 2 is 1.


　　(2) The remainder when n + 1 is divided by 3 is 2.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　Answer:


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　　33:


　　Is │x│=│y│?


　　(1) x - y=6


　　(2) x + y=0


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　Answer:


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　　34:


　　If r, s, and t are positive integers, is r + s + t even?


　　(1) r + s is even.


　　(2) s + t is even.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　Answer:


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　　35:


　　Joanna bought only $0.15 stamps and $0.29 stamps. How many $0.15 stamps did she buy?


　　(1) She bought $4.40 worth of stamps.


　　(2) She bought an equal number of $0.15 stamps and $0.29 stamps.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　Answer:


　　36:


　　Professor Vásquez gave a quiz to two classes. Was the range of scores for the first class equal to the range of scores for the second class?


　　(1) In each class, the number of students taking the quiz was 26, and the lowest score in each class was 70.


　　(2) In each class, the average (arithmetic mean) score on the quiz was 85.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　Answer:


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　　37:


　　The operation ○ is defined by the equation x ○ y=(x-y)/(x+y), where y ≠ -x. If 3 ○ y=5 ○ 4, then y=


　　A. 1/9


　　B. 4/15


　　C. 5/12


　　D. 12/5


　　E. 15/4


　　Ans


　　1:


　　If 2 different representatives are to be selected at random from a group of 10 employees and if p is the probability that both representatives selected will be women, is p > ?


　　(1) More than of the 10 employees are women.


　　(2) The probability that both representatives selected will be men is less than .


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


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　　2:


　　For all integers n, the function f is defined by f (n)=an, where a is a constant. What is the value of f (1)?


　　(1) f (2)=100


　　(2) f (3)=-1,000


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　3:


　　Mary persuaded n friends to donate $500 each to her election campaign, and then each of these n friends persuaded n more people to donate $500 each to Mary’s campaign. If no one donated more than once and if there were no other donations, what was the value of n?


　　(1) The first n people donated of the total amount donated.


　　(2) The total amount donated was $120,000.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


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　　4:


　　If p is the product of the integers from 1 to 30, inclusive, what is the greatest integer k for which 3k is a factor of p?


　　A. 10


　　B. 12


　　C. 14


　　D. 16


　　E. 18


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　　5:


　　If x, y, and k are positive numbers such that ( )(10) + ( )(20)=k and if x < y, which of the following could be the value of k?


　　A. 10


　　B. 12


　　C. 15


　　D. 18


　　E. 30


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　　6:


　　Tom, Jane, and Sue each purchased a new house. The average (arithmetic mean) price of the three houses was $120,000. What was the median price of the three houses?


　　(1) The price of Tom’s house was $110,000.


　　(2) The price of Jane’s house was $120,000.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　7:


　　If the sequence x1, x2, x3, …, xn, … is such that x1=3 and xn+1=2xn – 1 for n ≥ 1, then x20 – x19=


　　A. 219


　　B. 220


　　C. 221


　　D. 220 - 1


　　E. 221 - 1


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　　8:


　　If the units digit of the three-digit positive integer k is nonzero, what is the tens digit of k?


　　(1) The tens digit of k + 9 is 3.


　　(2) The tens digit of k + 4 is 2.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　9:


　　rst


　　uvw


　　xyz


　　Each of the letters in the table above represents one of the numbers 1, 2, or 3, and each of these numbers occurs exactly once in each row and exactly once in each column. What is the value of r?


　　(1) v + z=6


　　(2) s + t + u + x=6


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


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　　10:


　　Is ?x?< 1?


　　(1) ?x + 1?=2?x - 1?


　　(2) ?x - 3? ≠ 0


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　----------------------------------------------------------------------------------------------------------------------


　　11:


　　A box contains 10 light bulbs, fewer than half of which are defective. Two bulbs are to be drawn simultaneously from the box. If n of the bulbs in box are defective, what is the value of n?


　　(1) The probability that the two bulbs to be drawn will be defective is 1/15.


　　(2) The probability that one of the bulbs to be drawn will be defective and the other will not be defective is 7/15.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　12:


　　The product of the units digit, the tens digit, and the hundreds digit of the positive integer m is 96. What is the units digit of m?


　　(1) m is odd.


　　(2) The hundreds digit of m is 8.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　----------------------------------------------------------------------------------------------------------------------


　　13:


　　If a certain coin is flipped, the probability that the coin will land heads is 1/2. If the coin is flipped 5 times, what is the probability that it will land heads up on the first 3 flips and not on the last 2 flips?


　　A. 3/5


　　B. 1/2


　　C. 1/5


　　D. 1/8


　　E. 1/32


　　----------------------------------------------------------------------------------------------------------------------


　　14:


　　If positive integer x is a multiple of 6 and positive integer y is a multiple of 14, is xy a multiple of 105?


　　(1) x is a multiple of 9.


　　(2) y is a multiple of 25.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　----------------------------------------------------------------------------------------------------------------------


　　15:


　　Seven different numbers are selected from the integers 1 to 100, and each number is divided by 7. What is the sum of the remainders?


　　(1) The range of the seven remainders is 6.


　　(2) The seven numbers selected are consecutive integers.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　----------------------------------------------------------------------------------------------------------------------


　　16:


　　150, 200, 250, n


　　Which of the following could be the median of the 4 integers listed above?


　　I. 175


　　II. 215


　　III. 235


　　A. I only


　　B. II only


　　C. I and II only


　　D. II and III only


　　E. I, II, and III


　　----------------------------------------------------------------------------------------------------------------------


　　17:


　　If a certain machine produces bolts at a constant rate, how many seconds will it take the machine to produce 300 bolts?


　　(1) It takes the machine 56 seconds to produce 40 bolts.


　　(2) It takes the machine 1.4 seconds to produce 1 bolt.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　------------------------------------------------------------------------------------------------------------


　　18:


　　If an integer n is to be chosen at random from the integers 1 to 96, inclusive, what is the probability that n(n + 1)(n + 2) will be divisible by 8?


　　A. B. C. D. E.


　　------------------------------------------------------------------------------------------------------------


　　19:


　　A total of $60,000 was invested for one year. Part of this amount earned simple annual interest at the rate of x percent per year, and the rest earned simple annual interest at the rate of y percent per year. If the total interest earned by the $60,000 for that year was $4,080, what is the value of x?


　　(1) x=(2) The ratio of the amount that earned interest at the rate of x percent per year to the amount that earned interest at the rate of y percent per year was 3 to 2.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　------------------------------------------------------------------------------------------------------------


　　20:


　　What is the probability that a student randomly selected from a class of 60 students will be a male who has brown hair?


　　(1) One-half of the students have brown hair.


　　(2) One-third of the students are males.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　------------------------------------------------------------------------------------------------------------


　　21:


　　At a certain company, each employee has a salary grade s that is at least 1 and at most 5. Each employee receives an hourly wage p, in dollars, determined by the formula p=9.50 + 0.25(s – 1). An employee with a salary grade of 5 receives how many more dollars per hour than an employee with a salary grade of 1?


　　A. $0.50


　　B. $1.00


　　C. $1.25


　　D. $1.50


　　E. $1.75


　　------------------------------------------------------------------------------------------------------------


　　22:


　　The annual rent collected by a corporation from a certain building was x percent more in 1998 than in 1997 and y percent less in 1999 than in 1998. Was the annual rent collected by the corporation from the building more in 1999 than in 1997?


　　(1) x > y


　　(2) < x – y


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　------------------------------------------------------------------------------------------------------------


　　23:


　　If n is an integer and 100 < n <200, what is the value of n?


　　(1) is an odd integer.


　　(2) is an even integer.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　------------------------------------------------------------------------------------------------------------


　　24


　　If 2 different representatives are to be selected at random from a group of 10 employees and if p is the probability that both representatives selected will be women, is p > ?


　　(1) More than of the 10 employees are women.


　　(2) The probability that both representatives selected will be men is less than .


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　Answer:


　　------------------------------------------------------------------------------------------------------------


　　25:


　　Material A costs $3 per kilogram, and material B costs $5 per kilogram. If 10 kilograms of material K consists of x kilograms of material A and y kilograms of material B, is x > y?


　　(1) y > 4


　　(2) The cost of the 10 kilograms of material K is less than $40.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　Answer:


　　------------------------------------------------------------------------------------------------------------


　　26:


　　What is the value of the integer n?


　　(1) n(n + 2)=15


　　(2) (n + 2)n=125


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　Answer:


　　------------------------------------------------------------------------------------------------------------


　　27:


　　Which of the following fractions has a decimal equivalent that is a terminating decimal?


　　A. B. C. D. E. Answer:


　　------------------------------------------------------------------------------------------------------------


　　28:


　　Theater M has 25 rows with 27 seats in each row. How many of the seats were occupied during a certain show?


　　(1) During the show, there was an average (arithmetic mean) of 10 unoccupied seats per row for the front 20 rows.


　　(2) During the show, there was an average (arithmetic mean) of 20 unoccupied seats per row for the back 15 rows.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　Answer:


　　------------------------------------------------------------------------------------------------------------


　　29:


　　This year Henry will save a certain amount of his income, and he will spend the rest. Next year Henry will have no income, but for each dollar that he saves this year, he will have 1 + r dollars available to spend. In terms of r, what fraction of his income should Henry save this year so that next year the amount he was available to spend will be equal to half the amount that he spends this year?


　　A. B. C. D. E. Answer:


　　30:


　　What is the ratio of the average (arithmetic mean) height of students in class X to the average height of students in class Y?


　　(1) The average height of the students in class X is 120 centimeters.


　　(2) The average height of the students in class X and class Y combined is 126 centimeters.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　Answer:


　　------------------------------------------------------------------------------------------------------------


　　31:


　　If a committee of 3 people is to be selected from among 5 married couples so that the committee does not include two people who are married to each other, how many such committees are possible?


　　A. 20


　　B. 40


　　C. 50


　　D. 80


　　E. 120


　　Answer:


　　------------------------------------------------------------------------------------------------------------


　　32:


　　What is the remainder when the positive integer n is divided by 3?


　　(1) The remainder when n is divided by 2 is 1.


　　(2) The remainder when n + 1 is divided by 3 is 2.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　Answer:


　　------------------------------------------------------------------------------------------------------------


　　33:


　　Is │x│=│y│?


　　(1) x - y=6


　　(2) x + y=0


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　Answer:


　　------------------------------------------------------------------------------------------------------------


　　34:


　　If r, s, and t are positive integers, is r + s + t even?


　　(1) r + s is even.


　　(2) s + t is even.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　Answer:


　　------------------------------------------------------------------------------------------------------------


　　35:


　　Joanna bought only $0.15 stamps and $0.29 stamps. How many $0.15 stamps did she buy?


　　(1) She bought $4.40 worth of stamps.


　　(2) She bought an equal number of $0.15 stamps and $0.29 stamps.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　Answer:


　　36:


　　Professor Vásquez gave a quiz to two classes. Was the range of scores for the first class equal to the range of scores for the second class?


　　(1) In each class, the number of students taking the quiz was 26, and the lowest score in each class was 70.


　　(2) In each class, the average (arithmetic mean) score on the quiz was 85.


　　A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.


　　B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.


　　C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.


　　D. EACH statement ALONE is sufficient.


　　E. Statements (1) and (2) TOGETHER are NOT sufficient.


　　Answer:


　　------------------------------------------------------------------------------------------------------------


　　37:


　　The operation ○ is defined by the equation x ○ y=(x-y)/(x+y), where y ≠ -x. If 3 ○ y=5 ○ 4, then y=


　　A. 1/9


　　B. 4/15


　　C. 5/12


　　D. 12/5


　　E. 15/4


　　Answer:


　　------------------------------------------------------------------------------------------------------------


　　wer:


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