A seller marks the price 50% above the cost price and gives 10% discount on an item. While selling, he cheats customer by giving 20% less in weight. Find his overall profit percent (approximate)?

Let the cost price be Rs 100 and amount of product be 100 gm

Now there is 50% markup so the marked price becomes Rs 150

Now after 10% discount on Marked price the selling price = Rs (150 - 15) = Rs 135

Now it is said that he only sale 80 % of the quantity So,

he is selling 80 gm in 135 Rs which means SP of 1 gm is = Rs 1.6875

Cost price of 1 gm = Rs 1

So profit percentage is 68.75 % ~ 68%

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