Question

by selling 45 kg of rice, a shopkeeper loses an amount equal to the selling price of 5 kg of rice. Find his gain or loss percent.

Answer 1

let cost price of 1 kg rice = 1
According to question,
50kg of selling price = 45 kg of cost price
1kg of selling price =45/50kg of cost price =0.90 of cost price

loss % = loss×100/cost price of 1kg
=(1-0.90)×100/1=10%