Question
A merchant marked a product 30% above its cost price. If he
sold the product at a 20% discount, what is the merchant's gain percentage?Solution
ATQ,
Let the cost price of the product be Rs. '100y'
So, marked price = 100y * 1.3 = Rs. '130y'
So, selling price = 130y * 0.80 = Rs. '104y'
So, required gain percentage = {(104y - 100y)/100y} * 100 = 4%
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