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3.05 Unit rates

Interactive practice questions

Tricia reads $20$20 pages of her book in $2$2 hours.

Which of the following is the unit rate of pages per hour?

$10$10 pages/hr

A

$2$2 pages/hr

B

$20:2$20:2

C

$10:1$10:1

D
Easy
< 1min

A car travels $320$320 km in $4$4 hours.

Easy
1min

A tap fills up a $240$240 liter tub in $4$4 hours.

Easy
< 1min

A toy manufacturer makes $720$720 toys in $9$9 hours.

Easy
< 1min
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Outcomes

6.RP.A.2

Understand the concept of a unit rate a/b associated with a ratio a:b with b ≠0. Use rate language in the context of a ratio relationship. For example, this recipe has a ratio of 3 cups of flour to 4 cups of sugar, so there is 3/4 cup of flour for each cup of sugar. Also, we paid $75 for 15 hamburgers, which is a rate of $5 per hamburger. (Expectations for unit rates in 6th grade are limited to non-complex fractions).

6.RP.A.3

Use ratio and rate reasoning to solve real-world and mathematical problems (e.g., by reasoning about tables of equivalent ratios, tape diagrams, double number line diagrams, or equations).

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