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Ratios
Unit Rate
Rates
Miscellaneous
100
In a drawing, there are three circles, four stars, and three triangles. What is the ratio of stars to the total number of shapes.
What is 2/5 or 4/10
100

George read 126 pages of a book in 12 minutes. How many pages did he read in 1 minute?

10.5 pages per minute

100

5 shovels of sand are mixed with 4 shovels of gravel to make cement. What is the number of shovels of gravel needed for 45 shovels of sand.

What is 36?

100

Christina biked 36 miles in 6 hours. If she biked at a constant speed, how many miles did she ride in one hour?

6 mi/hr

200

Mel has 3 hats, 4 scarves, 2 coats, and 6 sweaters.
What could the ratio 7 : 15 represent?

Hats and Scarves to Everything

200

The science materials cost $65.70 to do the experiment. If 9 students participated in the experiment, what was the unit cost per student?

$7.30

200

Ari can walk 2 miles in 40 min. What is the amount of time it will take him to walk 4 miles.

What is 80 min.?

200

Ricky made $600 in two weeks. Find the unit rate.

$300/week

300
The recipe calls for 2 eggs for every 8 cups of flour. How many eggs are needed with 40 cups of flour?
10 eggs
300

The toys cost $69.95 for 5 models. What is the unit rate for each model toy?

$13.99 per model toy

300

Paul used 6 black tiles and 12 white tiles for a pattern. What is the ratio of black tiles to white tiles.

1:2 or 6:12

300

Write a unit rate for this situation: 310 heartbeats per 5 minutes

62 heartbeats per minute

400
There are 40 rabbits in a cage. The ratio of white rabbits to grey rabbits is 3:7. How many white rabbits are in the cage?
12 white rabbits
400

A factory can produce mousetraps at a rate of 1500 traps in 3 hours. What is the unit rate per hour?

500 traps per hour

400

Apples sell 4 for $2.40. How much do 6 apples cost?

$3.60

400

Rose spent $2.00 for 20 pieces of gum. Joe spent $1.50 for 10 pieces of gum. Who got the better deal and why?

Rose got the better deal. She got one piece for $0.10 and Joe spent $0.15 for one piece.

500
There are 75 mice in a cage. The ratio of pink mice to black mice is 2:3. How many black mice are in the cage?
45 mice
500

Hillary earned $45 babysitting. If she babysat for 6 hours, what was her rate per hour?

$7.50 per hour

500

Ivy's Fresh Eggs transports its eggs in crates. It takes 2 trucks to carry 80 crates. What is the number of crates that 8 trucks can carry.

320 crates

500

Larry can type 225 words in 3 minutes. How many words can he type in 10 minutes?

750 words