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

Try the free Mathway calculator and problem solver below to practice various math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.