6th Ratio & Rates

Ratios

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 

200

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 shovels of gravel

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

400

There are 40 rabbits in my yard. The ratio of white rabbits to grey rabbits is 3:7. How many white rabbits are in my yard?

12 white rabbits

500

There are 75 Girl Scout cookies on the tray. The ratio of Thin Mints to Lemonades is 2:3. How many Lemonades are on the tray?

45 Lemonades

Unit Rate/Ratio

100

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

7 pages per 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

300

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

$13.99 per model toy

400

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

500 bulbs per hour

500

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

$7.50 per hour

Rates

100

If your heart beats 310 times in 5 minutes, how many times will it beat in 7 minutes?

434 times

200

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

80 min

300

Paul lays 6 black tiles in 12 minutes for a pattern. What is the rate he lays black tiles in the pattern.

1/2 per minute 

400

A bunny hops across my yard in 45 s. If my yard is 90 ft wide, at what speed is the bunny hopping?

2 ft/s

500

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

750 words

Miscellaneous

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

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

$300/week

300

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

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