Ratios and Rates Quiz

Donald’s Donuts makes both chocolate and plain glazed donuts. Each Saturday, they make 13 plain glazed donuts for every 7 chocolate glazed donuts. What is the ratio of chocolate glazed to plain glazed?

• 7:13

• 13:7

• 7:20

• 13:20

Use the picture to match the ratios correctly. (The ratios have been simplified.)

• 3 : 2

• total squares to white squares

• 1 : 2

• gray squares to total squares

• 1 : 3

• gray squares to white squares

• 2 : 3

• black squares to gray squares

• 2 : 9

• white squares to total squares

Determine if the ratios are equivalent: 12:16 and 72:96

• Yes, they are equivalent

• No, they are not equivalent

Determine if the ratios are equivalent: 20:14 and 80:56

• Yes, they are equivalent

• No, they are not equivalent

To make a cleaning solution, George mixes 3 cups of water to 4 drops of cleaner. Which table best represents the ratio of the cleaning solution?

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The table below shows the number of children, c, to each childcare worker, w. Based on the information in the table, which of the following statements is not correct?

• A. The ratio of children to childcare workers is 4:1.

• B. If there were 32 children, then there would be 8 childcare workers.

• C. If there were 5 childcare workers, then there would be 20 children.

• D. The ratio of childcare workers to children is 4:1.

Copy Central prints grayscale and colored copies. Yesterday, they printed 9 grayscale copies for every 2 colored copies. If they printed 20 color copies, how many grayscale copies were printed?

• 90

• 80

• 100

• 70

At a local daycare, there is a ratio of 2 caretakers for every 7 children. If there are 189 total children, then how many people are at the daycare facility?

• 243

• 200

• 210

• 230