# A publisher sells copies of books to a retail dealer at Rs. 5 per copy

A publisher sells copies of books to a retail dealer at Rs. 5 per copy but allows 25 copies to be counted as 24. If the retailer sells each of the 25 copies at Rs. 6 his profit % is:

- 20%
- 24%
- 25%
- 40%

**Answer: (3) 25%**

**Explanation:-
**Cost price of a copy = Rs. 5

Therefore, the Cost price of 24 copy = 24 x 5 = Rs. 120

Selling price of a copy = Rs. 6

Therefore, the selling price of 25 copies = 25 x 6

= Rs. 150

Profit = 150 – 120

= Rs. 30

Then, the profit percent = 30 x 100/120

= 10 x 10/4

= 25%

Then, the profit percent is 25%.

Hence, the answer is (3) 25%.