Topics
3. Ratio & Proportion
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United States of AmericaOH
Grade 6

3.05 Unit rates

Lesson
Practice

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.2

Understand the concept of a unit rate a/b associated with a ratio a:b with b ≠ 0, and 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.” “We paid $75 for 15 hamburgers, which is a rate of $5 per hamburger.”

6.RP.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.

6.RP.3b

Solve unit rate problems including those involving unit pricing and constant speeFor example, if it took 7 hours to mow 4 lawns, then at that rate, how many lawns could be mowed in 35 hours? At what rate were lawns being mowed?

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