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 lose percent.
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Answer 1

ANS

Cost of 10 bananas = Rs. 45

Cost of 1 banana = 45/10

= Rs. 4.5

Selling price of 12 bananas = Rs. 51

Selling price of 1 banana = 51/12

= Rs. 4.25

Loss = Cost price of 1 banana - Selling price of 1 banana

Loss = 4.5 - 4.25

Loss = Rs. 0.25

Loss percent = (Loss*100)/Cost price

⇒ (0.25*100)/4.5

⇒ 25/4.5

⇒ 5.55%

So, he suffered a loss of 5.55 %.