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Ratios
Unit Rate
Rates
Miscellaneous
Scale Maps and plans
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.

 2/5 or 4/10

100

George read 126 pages of a book in 18 minutes. How many pages did he read in 1 minute?

7 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.

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
100

A map has a scale of 1:25000. What is the actual distance if the scaled distance is 4 cm? Answer in km.

Actual distance = 1km

200

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

62 heartbeats/minute

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 5 km in 40 min. What is the amount of time it will take him to walk 8 km.

64 min or 1 hour 4 min.?

200
Ricky made $600 in two weeks. Find the unit rate.
$300/week
200

A map has a scale of 1:25000. What is the scaled distance if the actual distance is 3.5 km? Answer in cm.

100 cm

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
Apples sell 4 for $2.40. How much do 6 apples cost?
$3.60
300

A map has a scale of 1: 50 000.What is 64 mm on the map?

3.2 km

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
30 buses can carry 1500 people. What is the number of people that can be carried by 5 buses.
250 people
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.
400

Lord Howe Island is 2.8 km wide. How long would its scaled width be on a map with a scale of 1: 50 000?

5.6 cm

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
500

A street directory uses a scale of 1cm : 200m.

1: 20 000