12 is 30% of _____.
In this problem you are trying to find value of the number, which is 30% of 12. To make things simpler, we will name this unknown value as "t".
Since you are trying to find value of the number, which is 30% of 12, you will need to divide. The numbers you will be dividing with are 30 and 100. You got these numbers because 30% of 100%.
Because you are trying to find value of the number, which is 30% of 12, the value will multiply with our answer from 100/30 to get 12. In other words, t = 12 * 100/30.
Work out the equation and you will receive the answer:
t = 40
