If logx (9/16) =  - 1/2, then x is equal to:

A    -3/4

B    3/4

C    81/256

D    256/81

Solution

Correct Answer: Option D

 

logx (9/16) = -1/2

=> x-1/2 = 9/16

=> 1/√x =9/16

=> √x = 16/9

=> x = (16/9)2

=> x = 256/81

Practice More Questions on Our App!

Download our app for free and access thousands of MCQ questions with detailed solutions