GMAT Problem Solving Question Bank

If –4 < x < 7 and –6 < y < 3, which of the following specifies all the possible values of xy?

A. –42 < xy < 21
B. –42 < xy < 24
C. –28 < xy < 18
D. –24 < xy < 21
E. –24 < xy < 24

Answer: C

Raymond purchased a package of ground beef at a cost of $1.98 per pound. If, for the same amount of money, Raymond could have purchased a piece of steak that weighed 40 percent less than the package of ground beef, what was the cost per pound of the steak?

A. $4.95
B. $4.20
C. $3.60
D. $3.30
E. $3.10

ANSWER:D

A total of 30 percent of the geese included in a certain migration study were male. If some of the geese migrated during the study and 20 percent of the migrating geese were
male, what was the ratio of the migration rate for the male geese to the migration rate for the female geese?

A. 1/4
B. 7/12
C. 2/3
D. 7/8
E. 8/7

ANSWER: A

If n is the greatest positive integer for which 2n is a factor of 10!, then n =

A. 2
B. 4
C. 6
D. 8
E. 10

ANSWER: C

A certain university will select 1 of 7 candidates eligible to fill a position in the mathematics department and 2 of 10 candidates eligible to fill 2 identical positions in the computer science department. If none of the candidates is eligible for a position in both departments, how many different sets of 3 candidates are there to fill the 3 positions?

A. 42
B. 70
C. 140
D. 165
E. 315

ANSWER: C