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GRE Sample Test 5 Quantitative Reasoning 1

Question : 3 of 20

Marks: +1, -0

x^3

x^5

Quantity A : x

Quantity B : 0

Solution:

Test different numbers that would satisfy the prompt. If x =

\frac{1}{2}

, then

\frac{1}{2^3}

\frac{1}{2^5}

. Thus,

\frac{1}{2}

is a possible value for x. In this case, Quantity A is greater. What about negative numbers? If x = −2, then

(-2)^3

(-2)^5

. Thus, −2 is a possible value for x. In this case, Quantity B is greater.

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