Topic 5 Review

If the ratio of cats to dogs in a pet shop is 3:4, and there are 12 cats, how many dogs are there?

• 16

• 15

• 14

• 18

Which of the following ratios is equivalent to 6:8?

• 3:4

• 9:12

• Both A and B

• None of the above

Create a ratio table for the ratio 2:5 up to 3 equivalent ratios.

• | 2 | 4 | 6 | |---|---|---| | 5 | 10 | 15 |

• | 2 | 5 | 8 | |---|---|---| | 5 | 12.5 | 20 |

• | 2 | 4 | 8 | |---|---|---| | 5 | 10 | 20 |

• | 2 | 6 | 10 | |---|---|---| | 5 | 15 | 25 |

If a recipe requires a ratio of 3 cups of flour to 4 cups of sugar, how much sugar is needed if 9 cups of flour are used?

• 10 cups

• 12 cups

• 14 cups

• 16 cups

What is the concept of a ratio?

• A comparison of two quantities by division

• A way to multiply two quantities

• A method to subtract one quantity from another

• A technique for adding two quantities

In a classroom, the ratio of boys to girls is 5:6. If there are 30 girls, how many boys are there?

• 25

• 24

• 35

• 20

Which of the following is NOT an equivalent ratio to 10:15?

• 2:3

• 4:6

• 20:30

• 5:8

A map scale shows that 2 inches equals 5 miles. How many miles would 8 inches represent?

• 10 miles

• 20 miles

• 15 miles

• 25 miles

If there are 4 red balls to every 5 blue balls, how many red balls are there if you have 20 blue balls?

• 16

• 18

• 20

• 15

A fruit salad recipe calls for a ratio of 2 parts apples to 3 parts oranges. If you use 6 apples, how many oranges do you need?

• 6

• 9

• 8

• 10