Question

by selling 125 mangoes a man gains an amount equal to the selling price of five mangoes find the gain percent

Answer 1

Profit = SP - CP
(SP of 5 mangoes) = (SP of 125 mangoes) - (CP of 125 mangoes)
(CP of 125 mangoes) = (SP of 125 mangoes) - (SP of 5 mangoes)
(CP of 125 mangoes) = (SP of 120 mangoes)

let CP of 1 mango be Rs. 1

CP of 120 mangoes = Rs. 120
SP of 120 mangoes = CP of 125 mangoes = Rs. 125

SP is greater than CP
Profit = SP - CP
= 125-120 = Rs. 5

Profit % = P/CP × 100 = 5/120 × 100 = 4.16%

Answer 2

Let cost of one mango be Rs.x
SP=125×x=125x
gain=5x
CP=SP-GAIN
CP=120x
then profit %
5x/120x× 100
1/24×100
or 25/6%
or 4 whole 1/6