A man buy a lemon at 6for ₹10 and sells at8 for ₹15.find his

Question

gain per cent

Answer 1

cost each:
10/6
sell each:
15/8

profit=15/8-10/6

percent gain:(profit)/costeach * 100

Answer 2

100 (15/8 - 5/3) / (5/3) = 12.5 %