Mary bought tray of egg's at R110.She sold half egg's at R65 and the remaining at price of R60 Calculate the average profit per egg made from sale of 60 egg's?

First, let's calculate the total cost of the tray of eggs:
Mary bought the tray of eggs for R110.

She sold half of the eggs at R65, which means she sold 30 eggs for R65 each, totaling:
30 eggs * R65 = R1950

She sold the remaining 30 eggs at R60 each, totaling:
30 eggs * R60 = R1800

The total revenue from selling all 60 eggs is:
R1950 + R1800 = R3750

Now, let's calculate the profit made from selling all 60 eggs:
Total revenue - Total cost = Profit
R3750 - R110 = R3640

Finally, let's calculate the average profit per egg:
Average profit per egg = Total profit / Total number of eggs
R3640 / 60 eggs = R60.67

Therefore, the average profit per egg made from the sale of 60 eggs is R60.67.