What is the value of x , if 5 ( 1 - x/5 ) - ( 5 - x ) - 1200\, of ( 20 - x ) = 0.08?

Answer: Option A

$$\begin{array}{rl}& 5\left(1-\frac{x}{5}\right)-\left(5-x\right)-\frac{1}{200}\text{of }\left(20-x\right)=0.08\\ & \Rightarrow 5-x-5+x-\frac{20-x}{200}=0.08\\ & \Rightarrow -\frac{20-x}{200}=0.08\\ & \Rightarrow x-20=0.08\times 200\\ & \Rightarrow x=16+20\\ & \Rightarrow x=36\end{array}$$