GRE- Quantitative Reasoning

QUESTION: 18

A. The quantity in Column A is greater;
B. The quantity in Column B is greater;
C. The quantities are equal;
D. The relationship cannot be determined from the information given.

Answer(s): C
Explanation: Multiply Quantity B by $1.20 to determine whether (and by how much) the cost of
p cans exceeds the cost of a case. ($1.20) (15) = $18.00, which is greater than the cost of a
case by $.60, less than the cost of one can. Accordingly, Quantity A is 15.

QUESTION: 19

A rectangular ribbon of paper is looped to form a circular ring having a diameter that measures
twice the ring's height.

A. The quantity in Column A is greater;
B. The quantity in Column B is greater;
C. The quantities are equal;
D. The relationship cannot be determined from the information given.

Answer(s): C
Explanation: The ring's height is equal to its radius. To determine Quantity A (the surface area
of
the outside of the ring), multiply the ring's circumference
by its height (r): SA =
.
To determine Quantity B (twice the ring's circular area), multiply 2 by the base's area:
. As
you can see, the two quantities are equal.

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