#Profit&Loss-1

A shopkeeper uses false weights thereby cheats customer by giving 750 gm instead of 1 kg. He also claims that he sells rice at the cost price. In order to increase his sales he offered 125 gm of rice free with every 1 kg of rice. What is his overall percentage(approximate) profit if a customer buys 1 kg of rice and if the shopkeeper uses false weight to measure 125 gm also?

Solution-

Let the cost price of 1 gm of rice = Re 1
Cost Price of 750 gm = Rs. 750
Selling Price = Rs. 1000
We know that,
SP = CP*(1 + Profit%)
He is offering 125 gm for free but actually he is just giving 125*3/4 gms for free

=> SP = 1000*1 + 125*(3/4)*0
=>CP = 750 + 125*(3/4)

=> 1000 = (750 + 125*0.75)*(1 + Profit%)
=> Profit% = 18.51% Ans

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