Question

2 toffees for 1 rupee and sell them for 5 rupees .Find loss or profit percentage'

Answer 1

Cost price of 2 toffees = 1
Cost price of 1 toffee = 1/2
Selling price of 5 toffees = 3
Selling price of 1 toffee = 3/5
Gain = 3/5 - 1/2 = 1/10
Gain% = 1/10 * 2 * 100 = 20%

So, the gain is 20%.