3 Oranges bought for 2 Rs –> 6 Oranges bought for 4 Rs
2 Oranges sold for 3 Rs –> 6 Oranges sold for 9 Rs.
6 Oranges, CP = 4 Rs, SP = 9 Rs –> Profit = 5 Rs
- Profit Percentage = [5/4]*100 = 125%
Note: Always remember to equate things (Oranges in this case), not money.