Solutions

Get detailed explanations to advanced GMAT questions.



Question

If 0 < x < 2, which of the following must be greatest?


 

Option A:

x

Option B:

x^2

Option C:

2x

Option D:

x + 2

Option E:

2^x

Difficulty Level

Easy

Solution

Option D is the correct answer.


Option Analysis

Plugging In for MUST-BE type Questions:

x = 1

A. x = 1

B. x^2 = 1^2 = 1

C. 2x = 2(1) = 2

D. x + 2 = 1 + 2 = 3  So this is the greatest. So eliminate all other answer choices.

E. 2^x = 2^1 = 2