Question

A man buys 11 lemons for 10 and sells 10 lemons for 11. What is his gain per cent?
​

Answer 1

Answer:

A man buys 11 lemons for 10 rupees

Cost price (CP) of each lemon = ₹10/11

He sells 10 lemons for 11 rupees.

Selling price (SP) of each lemon = ₹11/10

Profit/Gain % = (SP - CP)/CP × 100

Profit/Gain % = (11/10 - 10/11)/10/11 ×100

= (121 - 100)/110 / 10/11× 100

= 21 × 100/110 × 11/10

= 2100/110 × 11/10

= 2100 × 11/1100

= 21%