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If the cost price of 50 oranges is equal to the selling price of 40 oranges, then the profit per cent is
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- 5%
- 10%
- 20%
- 25%
Correct Option: D
Let the C.P. of one orange = 1
∴ C.P. of 40 oranges = $ 40
and S.P. of 40 oranges = $ 50
∴ Profit = (50 – 40) = $ 10
| ∴ Profit % = | × 100 | C.P. of 40 oranges |
| Profit % = | × 100 = 25% | 40 |
Second method to solve this question :
Here, p = 50, q = 40
| Profit % = |  | p - q |  | × 100 | |
| q |
| Profit % = | | 50 - 40 | | × 100 = 25% | |
| 40 |
