Sujatha sold 75% of her goods at a profit of 24% and the remaining at a loss of 40%. What is her gain/loss percentage on the whole transaction?

8% gain

Let the total quantity = 4

75% of 4 = 3

25% of 4 = 1

              CP                         SP

              3-----24%Gain----3.72

              1----(40%)Loss----0.6

         ————————————————

              4                          4.32

Profit = 4.32 - 4 = 0.32

Profit% = \(\frac{0.32 × 100}{4}\) = 8%