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A trader marked the selling price of an article at 10% above the cost price. At the time of selling, he allows certain discount and suffers a loss of 1%. He allowed the discount of :
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- 11%
- 10%
- 9%
- 10.5%
Correct Option: B
Let C.P. be 100
Marked price = 110
∴ p% of 110 = 11
| ⇒ p = | = 10% | |
| 100 |
2nd method to solve this question.
Here, loss % = 1%, r = 10%, rr1 = p%
| loss % = | − r1 | |
| 100 |
| −1 = | − p | |
| 100 |
(–ve sign for loss)
–100 = 1000 – 10p – 100p
110p = 1100
p = 10%
⇒ r1 = 10%
