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#### Discount

1. Jasmine allows 4% discount on the marked price of her goods and still earns a profit of 20%. What is the cost price of a shirt if its marked price is ₹ 850?
1. ₹ 650
2. ₹ 720
3. ₹ 700
4. ₹ 680
##### Correct Option: D

Let Cost price of the shirt = ₹ p

 ∴  p × 120 = 850 × 96 100 100

⇒  p × 120 = 850 × 96
 ⇒  p = 850 × 96 = ₹ 680 120

2nd method to solve this question.
Here r = 20%, D = 4%,
M.P. = ₹ 850, C.P. = ?
 M.P. = 100 + r C.P. 100 − D

 850 = 100 + 20 C.P. 100 − 4

 C.P. = 850 × 96 120

C.P. = ₹ 680