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If the discount of 10% is given on the marked price of a radio, the gain is 20%. If the discount is increased to 20%, the gain percent is :
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- 5%
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6 1 % 4 -
6 2 % 3 -
7 5 % 8
Correct Option: C
Let the C.P. of article be Rs. 100 and the marked price be Rs. q.
Case I
| = | = 120 | |
| 100 |
| ⇒ q = | |
| 90 |
| Marked price q = Rs. | |
| 3 |
Case II
| S.P. = | = Rs. | ||
| 100 | 5 |
| = Rs. |  | × |  | = Rs. | |||
| 5 | 3 | 3 |
| ∴ Profit = Rs. | | − 100 | | |
| 3 |
| Profit = Rs. | | | |
| 3 |
| Profit = Rs. | |
| 3 |
| ∴ Profit percent = | % | |
| 3 |
| Profit percent = 6 | % | |
| 3 |
