GRE- Quantitative Reasoning

Quantity B =

QUESTION: 65

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): B
Explanation: You can express
as the product of binomials
Thus, the
equation
has two distinct roots, or y-values: -3 and 2. Since Y could have
either of two values, the answer is choice (D).
QUESTION: 66

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): A
Explanation: Both triangles are right triangles. The triangle described in Column A has legs 3
and 4 units long. The triangle described in Column B has legs 3 units long each. Hence, the
hypotenuse and, in turn, the perimeter of the triangle described in Column A must be greater
than those of the triangle described in Column B. There's no need to calculate either
hypotenuse or perimeter.

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