1. a is what percent of b?

2. What percent of a is 5?

3. 20 is what percent more than 15?

4. 2/5 is what percent of b?

5. 15 is what percent less than 20?

6. 1/2 is what percent more than 1/5?

7. 2/3 is what percent less than 1 1/2?

8. If a>b, what percent more than b is a?

9. if a<b, what percent less than b is a?

10. What is 40% more than 20%?

11. What is 40% more than 20% of 40?

12. What is 40% more than 40 less than 20% of 80?

13. What is a% less than b% more than c?