The sum of $$\sqrt {0.01} + \sqrt {0.81} + \sqrt {1.21} + \sqrt {0.0009} = ?$$

A. 2.1

B. 2.13

C. 2.03

D. 2.11

Answer: Option B

Solution(By Examveda Team)

$$\eqalign{ & {\text{According to the question,}} \cr & \sqrt {0.01} + \sqrt {0.81} + \sqrt {1.21} + \sqrt {0.0009} \cr & = 0.1 + 0.9 + 1.1 + 0.03 \cr & = 2.13 \cr} $$