1)

What is the square root of 0.0009 ?


A) 0.09

B) 0.03

C) 0.33

D) 0.07

Answer:

Option B

Explanation:

$ \sqrt{0.0009}  = \sqrt{\frac{9}{10000}}$
$ = \frac{\sqrt{9}}{\sqrt{10000}}$
$=  \frac{3}{100} = 0.03$