Question

the selling price of 10 balls is equal to the cost price of 15 balls find gain or loss percentage​

Answer 1

Step-by-step explanation:

Let the C.P. of 1 ball be x

C.P. of 10 balls = 10x

S.P. of 10 balls = 15x

Gain = (15x - 10x)

= 5x

Gain percent = (5x/10x) × 100

= 50 %