If two successive discounts, each of 20% on the marked price of an article, are equal to a single discount of ₹ 331.20, then the marked price (in ₹) of the article is:

920

Single discount = ₹331.20

Successive discount =  x + y - \(\frac{x × y}{100}\)

Successive discount =  20 + 20 - \(\frac{20 × 20}{100}\) = 36%

36% of MP = 331.20

100% of MP = 920