Question

A shopkeeper sells 20 pencils for the same amount of money as he paid for 25 pencils. What is his gain percent?

• A. 20%
• B. 25%
• C. 24%
• D. 21%
• E. None of these

Answer 1

The correct option is B 25%

Here, m=25, n=20.
$\therefore \%gain=\left(\frac{m-n}{n}\right)\times 100=\left(\frac{25-20}{20}\right)\times 100$
=25%