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Ratios/Rates
Proportions
Find the Ratio
100
In a drawing, there are three circles, four stars, and three triangles. It is the ratio of stars to the total number of shapes.
What is 2/5?
100
It is the missing number in the proportion: 5/8 = n/48
What is n=30?
100

Write 6 girls to 8 boys as a ratio.

6 : 8 or 3 : 4

200
Ari can walk 2 miles in 40 min. It is the amount of time it will take him to walk 4 miles.
What is 80 min.?
200
Five shovels of sand are mixed with 4 shovels of gravel to make cement. It is the number of shovels of gravel needed for 45 shovels of sand.
What is 36?
200

There are 2 boys and 5 girls in a class. What is the ratio of girls to boys?

5 : 2

300
Paul used 6 black tiles and 12 white tiles for a pattern. It is the ratio of black tiles to white tiles.
What is 1:2?
300
Thirty buses can carry 1500 people. It is the number of people that can be carried by 5 buses.
What is 250?
300

Sally ate 9 jelly beans, 2 red, 6 green, and 2 blue. What is the ratio for green to red to blue jellybeans?

6 : 2 : 2 or 3 : 1 : 1

400
The equation "t = 6.2h" gives the time in hours, "t", that a candle will burn if the candle has a height in inches of "h." It is the time that a 4-inch candle will burn.
What is 24.8 hrs.?
400
Ivy's Fresh Eggs transports its eggs in crates. It takes 2 trucks to carry 80 crates. It is the number of crates that 8 trucks can carry.
What is 320?
400

9 out of 13 fish are orange. What is the ratio of fish that are orange to fish that are not orange?

9 : 4

500
The equation "d = 55t" gives the distance in miles, "d", that a car can travel in "t" hours. It is the time it takes to drive 247.5 miles.
What is 4.5 hrs.?
500
It is the missing number in the proportion: 6/8 = n/20
What is 15?
500

Of the ten members on a team, 2 are girls. What is the ratio of girls to boys?

2:8 or 1:4