Question

If $\sqrt{0.01+\sqrt{0.0064}}=x$, then the value of $x$ is ____________.

• A. $0.3$
• B. $0.03$
• C. $\sqrt{0.18}$
• D. None of these

Answer 1

The correct option is A $0.3$

Given, $\sqrt{0.01+\sqrt{0.0064}}=x$

Taking square of both sides.

$0.01+\sqrt{0.0064}=x^2$

We know that $\sqrt{0.0064}=0.08$

So, $x^2=0.08+0.01$
$x^2=0.09$

$x=0.3$