Ratio, Proportion and Percent Review

A scale drawing of a billboard uses the scale 4 cm:9 ft. The length of the billboard in the drawing is 11 cm. How long is the actual billboard?

• 13 ft

• 20.75 ft

• 24.75 ft

• 22 ft

A cake recipe calls for 1.5 cups of milk and 3 cups of flour. Seth made a mistake and used 5 cups of flour. How many cups of milk should he use to keep the proportions correct?

• 2.5 cups milk

• 1.75 cups milk

• 2 cups flour

• 2.25 cups milk

What mathematical operation do ratios involve?

• addition

• subtraction

• multiplication

• division

What is the ratio of red apples to green apples

• 7 apples to 3 green

• 4 red apples to 7 apples

• 4 red apples to 3 green apples

• 3 green apples to 4 red apples

Do the ratios form a proportion?

• Yes, they form a proportion.

• No, they do not form a proportion.

26 is 5% of what number?

• 3

• 5

• 25.95

• 520

A comparison of two quantities (amounts)

• Ratio

• Proportion

• Rate

• Multiplicative Relationship 

If you have 3 pennies, 4 nickels, and 5 dimes which represents the following ratio: nickels to total number of coins?

• 4:5

• 3:12

• 4:12

• 5:12

A rate where the denominator is 1.

• Fraction

• Rate

• Unit Rate

• Ratio

Patrick has 2 black, 3 red, and 5   white toy cars. What is the ratio of red toy cars to all the toy cars? 

• 3:5

• 1:3

• 3:11

• 3:10