Question

A bookseller sold a book for Rs.100 and thereby gains Rs.20. Find his gain percent.

• A. 20%
• B. 25%
• C. 40%
• D. None of these

Answer 1

The correct option is B 25%

Selling Price = Rs 100
Profit = Rs 20
Cost Price = SP - Profit = $100-20=80$
Thus, Profit % = $\frac{Profit}{CP}\times 100=\frac{20}{80}\times 100=25$ %