An article was sold for ₹512 after giving two equal successive discounts on the marked price of ₹800. The percentage discount offered is:

16% 20% 18% 15%

20%

Given= M.P = 800 S.P = 512 Now, M.P : S.P = 800 : 512 = 400 : 256 Here, two discounts are given successively. So, after one discount the ratio becomes, M.P : S.P = √400 : √256 M.P : S.P = 20 : 16 Discount% = (20-16) × \(\frac{100}{20}\) = 20%