Two shops in the same market sell the identical model of ceiling fan at exactly the same price of ₹2160. The first shop had bought it for ₹1800 and the second for ₹1600. The second shop's profit percent exceeds the first's by how many percentage points?

First shop: 360 on 1800 = 20%. Second shop: 560 on 1600 = 35%. The gap is 35 − 20 = 15 percentage points. (Adding the two profit rates to 55 answers nothing. The ₹200 difference in the two cost prices is 12.5% of ₹1600 and 11.11% of ₹1800, but neither of those is the gap between the two PROFIT rates — the same selling price sits on two different bases, and that is what stretches 20% into 35%.)