Percent Proportion

90% of 50 is what number?

20 is what percent of 45?

63% of what number is 5?

75% of 120 is what number?

What percent of 100 is 25?

40% of what number is 20?

What is 30% of 150?

50 is what percent of 200?

10% of what number is 7?

60 is what percent of 240?