Question

a man bought bananas at the rate of 10 for ₹45 and sold at the rate of one dozen bananas for ₹51 .find his gain or loss per cent

Answer 1

Find the cost price of 1 banana:

10 bananas = ₹ 45

1 banana = 45 ÷ 10 = ₹4.50

Find the selling price of 1 banana:

1 dozen = 12

12 bananas = ₹51

1 banana = 51 ÷ 12 = ₹4.25

Find the gain / loss:

Cost Price > Selling Price => It is a loss

Loss = Cost Price - Selling Price

Loss =₹4.50 - ₹4.25 = ₹0.25

Find the loss percentage:

Loss = ₹0.25

Loss Percentage = Loss / Cost Price x 100

Loss Percentage = 0.25 / 4.50 x 100 = 16.67%

Answer: He sold the banana at a loss of 16.67%