If $$\sqrt {1369} + \sqrt {0.0615 + x} $$ = 37.25, the x is equal to ?
A. $${10^{ - 1}}$$
B. $${10^{ - 2}}$$
C. $${10^{ - 3}}$$
D. None of these
Answer: Option C
Solution(By Examveda Team)
$$\eqalign{ & \Leftrightarrow 37 + \sqrt {0.0615 + x} = 37.25 \cr & \Leftrightarrow \sqrt {0.0615 + x} = 0.25 \cr & \Leftrightarrow 0.0615 + x = {\left( {0.25} \right)^2} = 0.0625 \cr & \Leftrightarrow x = 0.001 \cr & \Leftrightarrow x = \frac{1}{{{{10}^3}}} \cr & \Leftrightarrow x = {10^{ - 3}} \cr} $$Related Questions on Square Root and Cube Root
The least perfect square, which is divisible by each of 21, 36 and 66 is:
A. 213444
B. 214344
C. 214434
D. 231444
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