Explanation:
Here :-
- Selling price of 25 balls is equal to the Cost of 15 balls

Let the cost price of one ball is ₹1. So ;-
- Cost price of 25 balls = ₹25
- Cost price of 15 balls = ₹15
↝ Here the selling price of 25 balls is equal to the cost of 15 balls. It means C.P of 15 balls = S.P of 25 balls. So, the selling price of 25 balls is ₹15.

Firstly, finding the loss :-



∴ The loss is Rs.10.

Now, finding the loss percentage :-






∴ The loss percent is 40%.
