Question

A vendor bought toffees at 6 for a rupee.how many for a rupee must he sell to gain20%?

Answer 1

Vendor got 6 toffess at 1 rupee.

To gain 20% of 1 rupee he should sell 6 at 1+20%of 1= Rs1.20p

so if he were to sell 6 toffes he would get 1.20 with 20% profit

So each toffee selling price should be 20p, therefore he should sell 5 toffees for Re1 to get 20% profit