Question

After allowing a discount of 10% on marked price,a trader still makes a gain of 17% .By what precent is the marked price above the cost price?

Answer 1

27 percent is marked

Answer 2

Let the cost price be 100
There is a gain of 17 percent So, selling price will be 117 rupees
Let the marked price be x
Then 90 percent of x = 117
(90/100)x=117
x=117*100/90
x=130
Above cost price =130-100=30
So marked price is 30 rupees above cost price
So shopkeeper must mark his good's price 30 percent more than the cost price