Percent, Percent Change, Percent Error, Mark Ups and Mark Downs, Simple Interest

If 20% of a number is 40, what is the number?

• 100

• 200

• 150

• 250

If 15% of a number is 30, what is the number?

• 100

• 150

• 250

• 200

What is 35% of 180?

• 63

• 70

• 75

• 80

A scientist recorded a temperature of 98°F, but the actual temperature was 100°F. Calculate the percent error in the scientist's measurement.

• 1%

• 2%

• 3%

• 4%

If 25% of a number is 50, what is the number?

• 200

• 150

• 100

• 250

If 30% of a number is 45, what is the number?

• 150

• 75

• 200

• 120

If 60% of a number is 72, what is the number?

• 110

• 120

• 84

• 96

A company's revenue increased by 15% from last year to this year. If the revenue last year was $500,000, what is the revenue this year?

• $600,000

• $575,000

• $525,000

• $450,000

What is 25% of 80?

• 20

• 30

• 15

• 40

What is the percent is 50 out of 200?

• 25%

• 20%

• 50%

• 10%