Selling Price of suitcase = ₹2880 which is 20 % above the marked price
marked price = 100120 × 2880
= ₹2400
Hence, the marked price of the suitcase is ₹2400
Cost price of the suitcase = ₹2400 - 15% of ₹2400
= ₹ 2400 - 15 × 2400100
= ₹2400 - 360
= ₹2040
Kunal bought the suitcase for ₹2040.