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A tradesman gives 4% discount on the marked price and gives 1 article free for buying every 15 articles and thus gains 35%. The marked price is increased above the cost price by
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- 40%
- 39%
- 50%
- 20%
Correct Option: C
Let the C.P. of each article be ₹ 1
For 15 books, the tradesman gives 1 book free.
∴ C.P. of 15 books = ₹ 16
gains = 35%
| ∴ S.P. of 15 books = 16 × | = ₹ | ||
| 100 | 5 |
| ∴ S.P. of 15 book = | = ₹ | ||
| 5 × 15 | 25 |
| Now, 96% of marked price = | |
| 25 |
| ∴ Marked price = | = | = ₹ 1.5 | ||
| 25 × 96 | 2 |
Total increase = 1.5 - 1 = ₹ 0.5
| ∴ The required % increase = | × 100 = 50% | |
| 1 |
