a vegetable seller on selling 20kg potatoes earns a profit equal to the selling price of 5kg potatoes. find his profit percentage.
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let he sell 20kg potatoes on100rs
so 5kg potatoes will be sold in 100/4
=25rs
so profit percentage=profit×100/cost price
=25×100/100=25%profit
so 5kg potatoes will be sold in 100/4
=25rs
so profit percentage=profit×100/cost price
=25×100/100=25%profit
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