To calculate Mrs Jendor's profit, we first need to determine the cost price of the radio set.
Let's assume that the cost price of the radio set is "x".
We know that Mrs Jendor made a profit of 10% on the cost price. This means that the selling price is 110% of the cost price.
We can write this as:
Selling price = Cost price + Profit
29,700 = x + 0.1x
Simplifying this equation, we get:
1.1x = 29,700
x = 27,000
So, the cost price of the radio set is 27,000.
Now, we can calculate the profit made by Mrs Jendor:
Profit = Selling price - Cost price
Profit = 29,700 - 27,000
Profit = 2,700
Therefore, Mrs Jendor made a profit of 2,700 on the sale of the radio set.