After allowing a discount of 10% on the marked price, a trader still makes a gain of 17%. By what per cent is the marked price above the cost price?
Let’s assume Cost Price of Product to be Rs.100.
Given he gains 17% on selling price would be
Selling Price = (100 + 17% of 100) = Rs.117
Discount = 10%
Let × be the marked price.
Market Price – Discount = Selling Price
x- (10% of x) = 117
× – x/10 = 117
9x/10 = 117
× = 130
Cost price is 100
Selling price is 117
Marked price is 130
So, Market Price is 30% above Cost Price.