 1. 50 is 20% of what number?
 2. What percent of 20 is 4?
 3. What number is 70% of 250?
 4. 10 is 5% of what number
 5. What number is 45% of 180?
 6. 40% of what number is 82
 7. What percent of 90 is 36?
 8. 60 is 25% of what number?
 9. What number is 32% of 1,000?
 10. What percent of 125 is 5?
 11. 57% of 109 is what number?
 12. What percent of 185 is 35?
 13. 73 is 20% of what number
 14. 25 is what percent of 365?
 15. 85% of 190 is what number
 16. 12.5 is 25% of what number?
 17. What percent of 128 is 24?
 18. 5.25% of 170 is what number?
 20. What percent of 49 is 7?
