Question

A vendor bought toffees at 6 for a rupee. how m for a rupee must he sell to gain 20%?​

Answer 1

5 toffees.

Use unitary method

CP of 1 toffee = ₹1/6

P% = 20%

SP = CP + (P% of CP)

SP of 1 toffee = ₹ 1/5

=> No. Of toffees to be sold in ₹1 = 5