What Percent of Question Model

1. What percent of 30 is 12?

(A)  2.5 %        (B) 3.6 %        (C) 25 %      (D) 40 %     (E) 250 %

2. 12 is what percent of number 30?

3. 7 percent of 9 is what percent of 7?

4. What percent of 13 is 20 percent of 195?

5. If 14 is added to 56, by what percent does the original number increase?

6. 25 percent of 30 is 75 percent of what number?

7. If y≠0, what percent of y percent of 50 is 40 percent of y ?

8. A cockroach population doubles every three days. If there were c cockroaches on June 1^st, what was the percent increase in the population on July 1^st (June has 30 days )

(A)  900 %        (B) 1,000 %        (C) 9,999 %      (D) 102,300 %     (E) 102,400 %