Question

$\sqrt{2^x}=32$ then $\frac{x-1}{x}$ is equal to :

• A. $9$
• B. $10$
• C. Both of them
• D. $\frac{9}{10}$
  

Answer 1

The correct option is D $\frac{9}{10}$

$\sqrt{2^x}=32$

$2^x={32}^2$

$2^x=(2^5{)}^2$

$2^x=2^{10}$

$x=10$

So,

$\frac{x-1}{x}=\frac{10-1}{10}=\frac{9}{10}$