Question

a shopkeeper wants to get a profit of 8%after giving a discount of 10%how much percent above his cost price should he mark his goods

Answer 1

Suppose cost price is Rs. 100, then since he wants 10% profit, he should sell it at Rs. 110, but Rs. 110is after applying 8% discount.

So after giving discount on some Rs. xx, he should have Rs. 110. i.e.

x−8x100=110⟹x=110x−8x100=110⟹x=110

So he should mark the goods at Rs. 110 i.e. 10% more than cost price.