Exponents and Roots GRE Practice Questions

This lesson is part of a series of practice test questions for the quantitative reasoning section of the GRE revised General Test.

These are the directions for the Quantitative Comparison Questions.

Directions: Compare Quantity A and Quantity B, using additional information centered above the two quantities if such information is given, and select one of the following four answer choices:
(A) Quantity A is greater.
(B) Quantity B is greater.
(C) The two quantities are equal.
(D) The relationship cannot be determined from the information given.

Example 1:
Quantity A: $$\frac{{\sqrt {300} }}{2}$$
Quantity B: $$\frac{{15}}{{\sqrt 3 }}$$ Example 2:
Quantity A: 4-3 × 3-4
Quantity B: 1 Example 3:
Quantity A: $$\sqrt {\frac{{20}}{3}}$$
Quantity B: $$\frac{4}{{\sqrt 2 }}$$ Example 4:
x > 1 and y > 0
Quantity A: xy - 1
Quantity B: xy

Example 5:
2n + 2n + 2n + 2n = 4n + 3
Quantity A: n
Quantity B: 4

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