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If the cost price of 12 pens is equal to the selling price of 8 pens, the gain percent is :
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33 1 % 3 -
66 2 % 3 - 25%
- 50%
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Correct Option: D
Let the CP of each pen be $ 1.
∴ CP of 8 pens = $ 8
SP of 8 pens = $ 12
| ∴ Gain % = | × 100 = 50% | 8 |
Second method to solve this question :
Here, p = 12, q = 8
| Profit % = |  | p - q |  | × 100 | |
| q |
| Profit % = | | 12 - 8 | | × 100 | |
| 8 |
| Profit % = | × 100 = 50% | 8 |
