Question

A book seller bought $200$ textbooks for Rs. $12000$. He wanted to sell them at a profit so that he get $24$ books free. At what profit per cent should he sell them?

• A. $10$
• B. $11$
• C. $12$
• D. $13$

Answer 1

The correct option is C $12$

Cost Price of 200 textbooks = 12000 Rs

$\therefore$ Cost price of 1 textbook $=\frac{12000}{200}=60Rs$

Profit = Cost of 24 books $=24\times 60=1440Rs$

$\therefore Profitpercentage=\frac{profit\times 100}{CP}=\frac{1440\times 100}{12000}=12\%$