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By selling an umbrella for Rs. 30, a shop-keeper gains 20%. During a clearance sale, the shopkeeper allows a discount of 10%. Find his gain percent during the sale season.
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- 8
- 7
- 9
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7 1 2
Correct Option: A
Given that , Selling price of an umbrella = Rs. 30
At gains 20% ,
| C.P. of umbrella = | × 30 = Rs. 25 | 120 |
| S.P. of umbrella after 10% discount = Rs. |  | 30 × 90 |  | = Rs. 27 |
| 100 |
Gain = 27 - 25 = Rs. 2
| ∴ Required gain percent = | | 2 | | × 100% |
| 25 |
| Required gain percent = | = 8% | 25 |
