Under a discount scheme, a dozen pair of gloves quoted at ₹200 is available at a discount of 20%. How many pairs of gloves can be bought for ₹320?

15 20 18 24

24

Marked price of 12 pairs of gloves = Rs. 200 Available money = Rs. 320 Discount = 20% S.P of 12 pairs of gloves = 80% of 200 = Rs.160 In Rs. 160 = 12 pairs can be bought Then, In Rs. 320 = 24 pairs can be bought.