There is a 20% discount on a dozen pairs of shoes marked at ₹7,200. How many pair of shoes can be bought with ₹1,440?

3 5 2 4

3

20% = \(\frac{1}{5}\) MP of 12 shoes = 7200 SP of 1 shoes = \(\frac{7200}{12}\) × \(\frac{4}{5}\) = 480 In rupees 480 one pair of shoes can be bought and in rupees 1440 , 3 pairs of shoes can be bought.