Question

Mark (✓) against the correct answer
On selling a bat for Rs 100, a man gains Rs 20. His gain % is

(a) 20%
(b) 25%
(c) 18%
(d) 22%

Answer 1

(b) 25%

SP of the bat = Rs. 100
Gain = Rs. 20

Gain = SP - CP
⇒ 20 = 100 - CP
⇒ CP = 100 - 20 = Rs. 80

$$\begin{gathered} \mathrm{Gain}\%=\left(\frac{\mathrm{Gain}}{\mathrm{CP}}\times 100\right)\% \\ =\left(\frac{20}{80}\times 100\right)\% \\ =25\% \end{gathered}$$