Question

on selling 17 balls at rs 720,there is a loss equal to the cp of 5 balls.the cp of a ball is?

Answer 1

Let cp of 1 ball be x

so, cp of 5 balls = 5x

cp of 17 balls = 17x

loss, = 17x - 720 = 5x

so, 12x = 720

so, x = 60

Hence, CP of one ball = Rs. 60

Answer 2

Cost of each ball = x

Rs. 720 + cost of 5 balls (5x) would be equal to total cost of 17 balls

720+5x = 17x

720 = 12x

x=60.

Each ball costs 60!