Question

What should come in place of both x in the equation $\frac{x}{\sqrt{16}}=\frac{\sqrt{4}}{x}$ ?

• A.
• B.
• C.
• D.

Answer 1

The correct option is D

$\frac{x}{\sqrt{16}}=\frac{\sqrt{4}}{x}\Rightarrow x^2=\sqrt{16}\times \sqrt{4}\Rightarrow x^2=\sqrt{64}\Rightarrow x^2=8$
$\Rightarrow$ $x=\sqrt{8}$