Question

The value of $\sqrt{900}+\sqrt{0.09}-\sqrt{0.000009}$ is

• A. $30.297$
• B. $30.197$
• C. $30.097$
• D. $30.397$

Answer 1

The correct option is A $30.297$

$\sqrt{900}+\sqrt{0.09}-\sqrt{0.000009}$
$=\sqrt{{\left(30\right)}^2}+\sqrt{{\left(0.3\right)}^2}-\sqrt{{\left(0.003\right)}^2}$
$=30+0.3-0.003=30.297$