If 2^x = 128, x =
A6
B7CORRECT
C8
D9
GREQuantitative Reasoning
AI
Toaster Teacher
Why the answer is B, and why the others tempt you.
2⁷ = 128. So x = 7.
Want this in Pidgin, Yoruba, Igbo or Hausa? Sign up free →
Practice more Quantitative Reasoning questions
GRE Quantitative Reasoning has thousands more questions like this — with Worked answers on every one.