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When a shopkeeper gives 10% discount on the list price of a toy, his gain is 20%. If he had given a discount of 20%, his percentage of gain would have been
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6 2 % 3 -
8 1 % 3 - 10%
- 15%
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Correct Option: A
Given that , discount = 10% , gain = 20%
Let the cost price of toy be ₹ 100 and the marked price be y.
| ∴ | = 120 | |
| 100 |
| ⇒ y = | = ₹ | ||
| 90 | 3 |
| S.P. after a discount of 20% = 80% of | |
| 3 |
| S.P. after a discount of 20% = | = | = 106 | |||
| 300 | 3 | 3 |
| ∴ Profit = SP - CP = 106 | − 100 = ₹ 6 | |||
| 3 | 3 |
| ∴ Profit percent = | × 100 = 106 | % | ||
| 100 | 3 |
