The marked price of watch was ₹ 820. A man bought the

The marked price of watch was ₹ 820. A man bought the watch for ₹ 570.72 after getting two successive discounts, of which the first was 20%. The second discount was

1. 18%
2. 15%
3. 13%
4. 11%

Correct Option: C

Total discount = ₹ (820 – 570.72) = ₹ 249.28

First discount = 820 ×	20	= ₹ 164
	100

∴ Second discount = ₹ (249.28 – 164) = ₹ 85.28
Price of the article after first discount = ₹ (820 – 164) = ₹ 656
If the second discount be D₂ % ,
then D₂ % of 656 = 85.28

⇒ D₂ =	85.28 × 100	= 13%
	656

Alternate method to solve this question :
Here, M.P. = Rs. 820, S.P. = 570.72, D₁ = 20%, D₂ = ?

S.P. = M.P.		100 − D₁			100 − D₂
		100			100

570.72 = 820		100 − 20			100 − D₂
		100			100

5707200	= 100 − D₂
820 × 80

100 − D₂ = 87
D₂ = 13 %

Discount

Aptitude

Correct Option: C