If 1369 + 0.0615 + x = 37.25, the x is equal to ?

Answer: Option C

$$\begin{array}{rl}& \iff 37+\sqrt{0.0615+x}=37.25\\ & \iff \sqrt{0.0615+x}=0.25\\ & \iff 0.0615+x={\left(0.25\right)}^2=0.0625\\ & \iff x=0.001\\ & \iff x=\frac{1}{{10}^3}\\ & \iff x=10^{-3}\end{array}$$