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The selling price of 10 oranges is the cost price of 13 oranges. Then the profit percentage is
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- 30%
- 10%
- 13%
- 3%
Correct Option: A
Let the CP of 1 orange = $ 1
then , CP of 10 oranges = $ 10
∴ SP of 10 oranges = $ 13
Gain = SP of 10 oranges - CP of 10 oranges = 13 - 10 = $ 3
| ∴ Gain percent = | × 100 | CP of 10 oranges |
| Gain percent = | × 100 = 30 % | 10 |
Second method to solve this question :
Here, p = 13, q = 10
| Profit % = |  | p - q |  | × 100 | |
| q |
| Profit % = | | 13 - 10 | | × 100 | |
| 10 |
| Profit % = | = 30% | 10 |
