Question

by selling 100 mangoes a fruit seller gain the s.p. of 20 mangoes.find his gain%.

Answer 1

Let the selling price of each mango = x Rs.

Then selling price of 100 mangoes = 100x Rs.

Gain = selling price of 20 mangoes = 20x Rs.

Cost price of 100 mangoes = selling price - gain

⇒ 100x - 20x = 80x

Gain percentage = (gain×100)/cost price

⇒ (20x × 100)/80x

Gain percentage = 25 % 

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Answer 2

answer=gain percentage=25