Proportion and Percents

In a survey, 75% of the participants preferred chocolate ice cream over vanilla. If there were 200 participants, how many preferred chocolate?

• 25

• 50

• 150

• 100

Summer Sports is having a sale. A volleyball has an original price of $59. It is on sale for 65% off the original price. All of the following could be used to find the selling price of the volleyball EXCEPT-

• Multiply .35 by 59

• Multiply .65 by 59 and subtract the result from 59.

On Saturday, Smoothie Central made $1300 in sales. On Sunday, they made $900 in sales. Which statement is TRUE?

• Sales increased from Saturday to Sunday by about 44%

• Sales decreased from Saturday to Sunday by about 44%

• Sales increased from Saturday to Sunday by about 31%

• Sales decreased from Saturday to Sunday by about 31%

Write a proportion and solve:
Eight is what percent of 64?

• 12.5%

• 8%

• 800%

Write a proportion and solve:
Thirty is 20% of what number?

• 150

• 6

• 143

• 18

Find 8% of 75.

• 6

• 937.5

• 22

• 801

Find 6% of $7500.

• $125,000

• $420

• $450

• $122,000

Write the ratio as a percent and then as a decimal:
1/4

• 25%, .25

• 400%, 4

• 25%, 25

• 400%, 40

Write the ratio as a percent and then as a decimal:
34/100

• 34, 34

• 34%, .34

• 34%, .34

What percent of 50 is 80?

• 160%

• 62.5%