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The cost price of 25 books is equal to the selling price of 20 books. The profit per cent is
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- 20%
- 22%
- 24%
- 25%
Correct Option: D
Let the cost price of each book be Re. 1.
∴ C.P. of 20 books = Rs. 20
S.P. of 20 books = Rs. 25
Profit = S.P. - C.P. = 25 - 20 = Rs. 5
| ∴ Profit percent = |  | Profit |  | × 100 | |
| C.P. of 20 books |
| Profit percent = | = 25% | 20 |
