gmat practice set 3 - quant

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1. If , is z 8? (1) x 4 (2) |y| 4 A. Statement (1) by itself is sufficient to answer the question, but statement (2) by itself is not. B. Statement (2) by itself is sufficient to answer the question, but statement (1) by itself is not. C. Statements (1) and (2) taken together are sufficient to answer the question, even though neither statement by itself is sufficient. D. Either statement by itself is sufficient to answer the question. E. Statements (1) and (2) taken together are not sufficient to answer the question, requiring more data pertaining to the problem.

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Page 1: GMAT Practice Set 3 - Quant

1. If , is z 8?

(1) x 4

(2) |y| 4

A. Statement (1) by itself is sufficient to answer thequestion, but statement (2) by itself is not.

B. Statement (2) by itself is sufficient to answer thequestion, but statement (1) by itself is not.

C. Statements (1) and (2) taken together are sufficient toanswer the question, even though neither statement byitself is sufficient.

D. Either statement by itself is sufficient to answer thequestion.

E. Statements (1) and (2) taken together are not sufficientto answer the question, requiring more data pertaining tothe problem.

Page 2: GMAT Practice Set 3 - Quant

2. On a certain farm, the onion and the pumpkin patch wereeach to receive x gallons of water for irrigation. The onion patchwas 50 acres, and the pumpkin patch was 60 acres. Once itcame time to deliver the water, the farmer decided to transfery gallons of water from the onion patch to the pumpkin patchso that each would receive the same amount of water per acre.Which of the following is equivalent to y ?

A.

B.

C.

D.

E.

Page 3: GMAT Practice Set 3 - Quant

3. If z is a positive integer, is the remainder of z divided by 10equal to 4?

(1) z is a multiple of 2.

(2) The remainder when z is divided by 5 is 4.

A. Statement (1) by itself is sufficient to answer thequestion but statement (2) by itself is not.

B. Statement (2) by itself is sufficient to answer thequestion but statement (1) by itself is not.

C. Statements (1) and (2) taken together are sufficient toanswer the question, even though neither statement byitself is sufficient.

D. Either statement by itself is sufficient to answer thequestion.

E. Statements (1) and (2) taken together are NOTsufficient to answer the question, requiring more datapertaining to the problem.

Page 4: GMAT Practice Set 3 - Quant

4. All but 50 of the 1,000 plants at the annual flower show weresold. Of the plants sold, 30 percent were sold at a discount of25 percent off the full price, and the remaining plants were soldat the full price of $12. What was the total revenue from theplant sales?

A. $8,550

B. $8,835

C. $10,545

D. $11,100

E. $12,000

Page 5: GMAT Practice Set 3 - Quant

5. For the positive integers s and t, 4s + 2t + 17 5s + 2t + 14.Is s a prime number?

(1) s t is a prime number

(2) s t is an odd integer

A. Statement (1) BY ITSELF is sufficient to answer thequestion, but statement (2) by itself is not.

B. Statement (2) BY ITSELF is sufficient to answer thequestion, but statement (1) by itself is not.

C. Statements (1) and (2) TAKEN TOGETHER aresufficient to answer the question, even though NEITHERstatement BY ITSELF is sufficient.

D. EITHER statement BY ITSELF is sufficient to answerthe question.

E. Statements (1) and (2) TAKEN TOGETHER are NOTsufficient to answer the question, requiring more datapertaining to the problem.

Page 6: GMAT Practice Set 3 - Quant

6. If x, y, and z are integers, is x -y odd?

(1) x = z2- 4y + 4

(2) y = z2- 2z + 1

A. Statement (1) BY ITSELF is sufficient to answer thequestion, but statement (2) by itself is not.

B. Statement (2) BY ITSELF is sufficient to answer thequestion, but statement (1) by itself is not.

C. Statements (1) and (2) TAKEN TOGETHER aresufficient to answer the question, even though NEITHERstatement BY ITSELF is sufficient.

D. EITHER statement BY ITSELF is sufficient to answerthe question.

E. Statements (1) and (2) TAKEN TOGETHER are NOTsufficient to answer the question, requiring more datapertaining to the problem.

Page 7: GMAT Practice Set 3 - Quant

7. If the sides of a triangle have lengths x, y, and z, x + y =30, and y + z = 20, then which of the following could be theperimeter of the triangle?

I. 28II. 36III. 42

A. I only

B. II only

C. I and II only

D. I and III only

E. I, II, and III

Page 8: GMAT Practice Set 3 - Quant

8. If x is a two-digit prime number whose digits are the reverseof the two-digit prime number y, what is the value of x?

(1) x - y = 54

(2) x + y = 88

A. Statement (1) by itself is sufficient to answer thequestion but statement (2) by itself is not.

B. Statement (2) by itself is sufficient to answer thequestion but statement (1) by itself is not.

C. Statements (1) and (2) taken together are sufficient toanswer the question, even though neither statement byitself is sufficient.

D. Either statement by itself is sufficient to answer thequestion.

E. Statements (1) and (2) taken together are NOTsufficient to answer the question, requiring more datapertaining to the problem.

Page 9: GMAT Practice Set 3 - Quant

9. If the function g(x) is defined by the equation g(x) = ax2- 3x

-b, where a and b are constants, g(5) = 0, and g(-2) = 0, then ab=

A. -10

B. 10

C. 15

D. 100

E. It cannot be determined from the information given.

Page 10: GMAT Practice Set 3 - Quant

10. If *n* = xn3 + n(y + 2) - 2, where x and y are constants, and

*3* = 4, what is the value of *-3* ?

A. -12

B. -8

C. 0

D. 6

E. It cannot be determined from the information given.

Page 11: GMAT Practice Set 3 - Quant

11. If it is true that -6 n 10, which of the following must betrue?

A. n 8

B. n = -6

C. n -8

D. -10 n 7

E. none of the above

Page 12: GMAT Practice Set 3 - Quant

12. If ab = 20 -a2b

2, where both a and b are negative, then a

2 =

A.

B.

C.

D.

E.

Page 13: GMAT Practice Set 3 - Quant

13. What is the value of a + b if a, b, and c are integers?

(1) 3a5b = 225c

(2) 9a54-2b = 15

c

A. Statement (1) by itself is sufficient to answer thequestion but statement (2) by itself is not.

B. Statement (2) by itself is sufficient to answer thequestion but statement (1) by itself is not.

C. Statements (1) and (2) taken together are sufficient toanswer the question, even though neither statement byitself is sufficient.

D. Either statement by itself is sufficient to answer thequestion.

E. Statements (1) and (2) taken together are NOTsufficient to answer the question, requiring more datapertaining to the problem.

Page 14: GMAT Practice Set 3 - Quant

14. If x and y are positive integers, does x-y = 0?

(1) (z2)x = z2y

(2) z 2 = z

A. Statement (1) by itself is sufficient to answer thequestion but statement (2) by itself is not.

B. Statement (2) by itself is sufficient to answer thequestion but statement (1) by itself is not.

C. Statements (1) and (2) taken together are sufficient toanswer the question, even though neither statement byitself is sufficient.

D. Either statement by itself is sufficient to answer thequestion.

E. Statements (1) and (2) taken together are NOTsufficient to answer the question, requiring more datapertaining to the problem.

Page 15: GMAT Practice Set 3 - Quant

15. If x and y are integers and x + y x -y, which of thefollowing MUST be true?

I. x 0

II. y 0

III. xy 0

A. II only

B. III only

C. I and III only

D. II and III only

E. I, II and III only

Page 16: GMAT Practice Set 3 - Quant

16. What is the average of p, q, and r?

(1) p + 3q - 2r = 5

(2) 4p + 2q + 7r = -5

A. Statement (1) by itself is sufficient to answer thequestion, but statement (2) by itself is not.

B. Statement (2) by itself is sufficient to answer thequestion, but statement (1) by itself is not.

C. Statements (1) and (2) taken together are sufficient toanswer the question, even though neither statement byitself is sufficient.

D. Either statement by itself is sufficient to answer thequestion.

E. Statements (1) and (2) taken together are not sufficientto answer the question, requiring more data pertaining tothe problem.

Page 17: GMAT Practice Set 3 - Quant

17. Set S is defined by the following sequence: S0 = 4, S

1 = 4,

and Sn = Sn - 1

+ 4 for all n 1.

What is the sum of the subset {S15

, S16

… S27

}?

A. 984

B. 1,024

C. 1,075

D. 1,092

E. 1,204

Page 18: GMAT Practice Set 3 - Quant

18. What is the remainder when is divided by 10?

(1) x is a multiple of 3.

(2) x is a multiple of 5.

A. Statement (1) by itself is sufficient to answer thequestion, but statement (2) by itself is not.

B. Statement (2) by itself is sufficient to answer thequestion, but statement (1) by itself is not.

C. Statements (1) and (2) taken together are sufficient toanswer the question, even though neither statement byitself is sufficient.

D. Either statement by itself is sufficient to answer thequestion.

E. Statements (1) and (2) taken together are not sufficientto answer the question, requiring more data pertaining tothe problem.

Page 19: GMAT Practice Set 3 - Quant

19. If the sum of the squares of x and y is 3, and x4 = y

4 + 25,

what is the value of x2?

A.

B.

C.

D.

E.

Page 20: GMAT Practice Set 3 - Quant

20. If 410-3z

86z+10

100-3z

5002z

= 1, what is the value of z?

A. 10

B. 5

C. 1

D. -5

E. -10

Page 21: GMAT Practice Set 3 - Quant

21. The number 1002 has how many factors?

A. 28

B. 25

C. 24

D. 20

E. 16

Page 22: GMAT Practice Set 3 - Quant

22. A fruit drink advertises that it has 5 percent apple juice.

Children pour themselves cup of this fruit drink and then add

another cup of fruit drink that has 50 percent apple juice.

Which is most nearly the percent of apple juice in the children'smixed drink?

A. 12.5%

B. 16.3%

C. 17.5%

D. 55.0%

E. 65.0%

Page 23: GMAT Practice Set 3 - Quant

23. Jim takes a seconds to swim c meters at a constant ratefrom point P to point Q in a pool. Roger, who is faster than Jim,can swim the same distance in b seconds at a constant rate.If Jim leaves point P the same time that Roger leaves point Q,how many fewer meters will Jim have swum than Roger whenthe two swimmers pass each other?

A.

B.

C.

D.

E.

Page 24: GMAT Practice Set 3 - Quant

24. Attorneys are questioning 11 potential jurors about theirability to serve on a jury and decide a case fairly. Sevenindividuals will be selected to serve on the jury. If each potentialjuror has an equal chance of being selected, what is theprobability that Tamara and Inga are chosen for the jury?

A.

B.

C.

D.

E.

Page 25: GMAT Practice Set 3 - Quant

25. If x and y are integers, is xy 0?

(1) x 0

(2) y = x3 - x2

A. Statement (1) by itself is sufficient to answer thequestion but statement (2) by itself is not.

B. Statement (2) by itself is sufficient to answer thequestion but statement (1) by itself is not.

C. Statements (1) and (2) taken together are sufficient toanswer the question, even though neither statement byitself is sufficient.

D. Either statement by itself is sufficient to answer thequestion.

E. Statements (1) and (2) taken together are NOTsufficient to answer the question, requiring more datapertaining to the problem.

Page 26: GMAT Practice Set 3 - Quant

26. The circular base of a planter sits on a level lawn, and justtouches two straight garden walls at points W and Y. The wallscome together at point X, which is 15 inches from the center ofthe planter. What is the area of the base of the planter?

(1) Both points Y and W are 9 inches from the center of theplanter.

(2) Point W is 12 inches from point X.

A. Statement (1) by itself is sufficient to answer thequestion, but statement (2) by itself is not.

B. Statement (2) by itself is sufficient to answer thequestion, but statement (1) by itself is not.

C. Statements (1) and (2) taken together are sufficient toanswer the question, even though neither statement byitself is sufficient.

D. Either statement by itself is sufficient to answer thequestion.

E. Statements (1) and (2) taken together are not sufficientto answer the question, requiring more data pertaining tothe problem.

Page 27: GMAT Practice Set 3 - Quant

27. A cake bakery sells white cakes, lemon cakes, andcombination cakes that have one white layer and one lemonlayer. Combination cakes currently comprise 20% of thebakery's inventory. The number of white cakes plus the numberof combination cakes totals 98. If half of all the cakes are whitecakes, how many of the cakes are lemon cakes?

A. 12

B. 22

C. 30

D. 42

E. 48

Page 28: GMAT Practice Set 3 - Quant

28. If x, y, and z are all positive integers, what is the remainderwhen 7xyz is divided by 4?

(1) yz = 3

(2) x is odd.

A. Statement (1) by itself is sufficient to answer thequestion but statement (2) by itself is not.

B. Statement (2) by itself is sufficient to answer thequestion but statement (1) by itself is not.

C. Statements (1) and (2) taken together are sufficient toanswer the question, even though neither statement byitself is sufficient.

D. Either statement by itself is sufficient to answer thequestion.

E. Statements (1) and (2) taken together are NOTsufficient to answer the question, requiring more datapertaining to the problem.

Page 29: GMAT Practice Set 3 - Quant

29. The ratio of men to women in the Snyder community choir is4 to 5. The ratio of men to women in the Leigh community choiris 5 to 6. If the two choirs merged, the ratio of men to womenin the combined choir would be 22 to 27. If Snyder has 4 moremen and 6 more women than Leigh, how many women are inthe Snyder choir?

A. 20

B. 24

C. 30

D. 32

E. 34

Page 30: GMAT Practice Set 3 - Quant

30. If the function g is such that g(x) = g(x- 1) -x + 2 and g(2) =2, what is the value of g(5)?

A. 1

B. 0

C. -1

D. -2

E. -4

Page 31: GMAT Practice Set 3 - Quant

31. If the Board of Selectmen contains 4 positions, and if in thecurrent election two candidates are running for each position,how many different combinations of candidates could beelected to the Board?

A. 6

B. 8

C. 12

D. 16

E. 24

Page 32: GMAT Practice Set 3 - Quant

32. If y is the average of x odd consecutive integers and

, which of the following MUST be true?

I. xy(z + 1) is even.

II. x(z + y) is even.

III. (x2 - x)yz is even.

A. I only

B. III only

C. I and II

D. II and III

E. I, II, and III

Page 33: GMAT Practice Set 3 - Quant

33. If x and y are positive integers, is 4x- 7y 0?

(1) 16x + 1

49y

(2) x y

A. Statement (1) by itself is sufficient to answer thequestion but statement (2) by itself is not.

B. Statement (2) by itself is sufficient to answer thequestion but statement (1) by itself is not.

C. Statements (1) and (2) taken together are sufficient toanswer the question, even though neither statement byitself is sufficient.

D. Either statement by itself is sufficient to answer thequestion.

E. Statements (1) and (2) taken together are NOTsufficient to answer the question, requiring more datapertaining to the problem.

Page 34: GMAT Practice Set 3 - Quant

34. Is x 0?

(1) x - y -8

(2) x + y = -8

A. Statement (1) BY ITSELF is sufficient to answer thequestion, but statement (2) by itself is not.

B. Statement (2) BY ITSELF is sufficient to answer thequestion, but statement (1) by itself is not.

C. Statements (1) and (2) TAKEN TOGETHER aresufficient to answer the question, even though neitherstatement by itself is sufficient.

D. Either statement BY ITSELF is sufficient to answer thequestion.

E. Statements (1) and (2) TAKEN TOGETHER are NOTsufficient to answer the question, requiring more datapertaining to the problem.

Page 35: GMAT Practice Set 3 - Quant

35. If two sides of a triangle are 12 and 8, which of the followingcould be the area of the triangle?

I. 35II. 48III. 56

A. I only

B. I and II only

C. I and III only

D. II and III only

E. I, II, and III

Page 36: GMAT Practice Set 3 - Quant

36. If x is an integer and 5x 1,000, what is the value of x?

(1) 5x+1

500

(2) 5x+1

- 5x

1,000

A. Statement (1) by itself is sufficient to answer thequestion but statement (2) by itself is not.

B. Statement (2) by itself is sufficient to answer thequestion but statement (1) by itself is not.

C. Statements (1) and (2) taken together are sufficient toanswer the question, even though neither statement byitself is sufficient.

D. Either statement by itself is sufficient to answer thequestion.

E. Statements (1) and (2) taken together are NOTsufficient to answer the question, requiring more datapertaining to the problem.