Percent Proportions and Converting Measures

200 children attended the school play. Of the total attendance, 40% were boys. How many girls attended the school play?

• 800

• 180

• 80

• 120

What is 30% of 50?

• 16

• 16.3

• 17.4

• 15

What is 20% of 65?

• 13

• 15

• 16

• 13.75

Shirley spelled 12 of her 15 spelling words correctly on the test. What percent grade did Shirley get on the test?

• 40%

• 50%

• 80%

• 60%

Solving percent proportion word problems: If 20% of the students in a class are girls, and there are 30 students in total, how many girls are there?

• 10

• 40

• 6

• 25

Solving percent proportion word problems: A shirt that originally cost $40 is on sale for 25% off. What is the sale price of the shirt?

• $35

• $25

• $30

• $45

Solving percent proportion word problems: The price of a computer is $800, which is 20% off the original price. What is the original price of the computer?

• $700

• $500

• $1000

• $600

Converting between fractions, decimals, and percents: Convert 0.75 to a fraction and a percent.

• 2/5, 50%

• 3/4, 75%

• 4/5, 80%

• 1/3, 25%

Converting between fractions, decimals, and percents: Convert 45% to a fraction and a decimal.

• 4/9, 0.54

• 3/8, 0.63

• 9/20, 0.45

• 5/11, 0.41

Using percent proportions to solve real-life problems: If a car originally cost $20,000 and is now selling for 15% off, what is the sale price of the car?

• $18,500

• $17,000

• $16,000

• $19,500