0.250.0009 × 0.090.36 is equal to ?

Answer: Option D

$$\begin{array}{rl}& \text{According to question,}\\ & \sqrt{\frac{0.25}{0.0009}}\times \sqrt{\frac{0.09}{0.36}}\\ & \Rightarrow \sqrt{\frac{25}{9}\times 100}\times \sqrt{\frac{9}{36}}\\ & \Rightarrow \frac{5\times 10}{3}\times \frac{3}{6}\\ & \Rightarrow \frac{25}{3}\\ & \Rightarrow 8\frac{1}{3}\end{array}$$