Answer

The correct choice:

10% of 30

First, find the numerical value from the equation.

15% of 20 is equal to:

(15/100) * 20 = 3

Next, convert all choices to numerical values and choose the correct choice.

30% of 15 is equal to:

(30/100) * 15 = 4.5

10% of 30 is equal to:

(10/100) * 30 = 3

20% of 40 is equal to:

(20/100) * 40 = 8

Answer: 10% of 30.