Ratios
What is the ratio of 3 apples to 4 oranges?
3:4 or 3 to 4
If 3 oranges cost $1.50, what is the cost of one orange?
$0.50
What is 1/2 of 10?
5
Are the ratios 2:3 and 4:6 equivalent? Explain why or why not.
Yes because you can multiply 2:3 by a factor of 2 to get 4:6 and you can divide 4:6 by a factor of 2 and get 2:3.
Find the mean of the following numbers: 2, 4, 6, 8, 10.
6
If there are 12 boys and 8 girls in a class, what is the ratio of boys to girls? (Simplify your answer)
3:2 or 3 to 2
A car travels 240 miles on 8 gallons of gas. What is the unit rate in miles per gallon?
30 miles per gallon
If you have 3/4 of a pizza and eat 1/4, how much pizza do you have left?
2/4 or 1/2
Find an equivalent ratio for 5:7.
10:14, 15:21, 20:28, 25:35
What is the median of the set of numbers: 3, 1, 4, 2, 5?
3
A recipe calls for 2 cups of flour and 3 cups of sugar. If there are 10 cups of flour, how many cups of sugar are there?
15 cups of sugar
If 4 notebooks cost $8, what is the unit price of one notebook?
$2.00
Convert 2/5 to a decimal
If the ratio of cats to dogs is 3:2, what is the equivalent ratio if there are 12 cats?
12:8
Identify the mode in the following list of numbers: 7, 8, 7, 10, 5 and explain your reasoning.
7 because mode means the number that is repeated the most.
If a car travels 150 miles using 5 gallons of gas, what is the ratio of miles to gallons?
30:1 or 30 to 1
A runner completes a 10-mile race in 2 hours. What is the runner's speed in miles per hour?
5 mphs
What is 3/8 of 32?
12
Determine if the ratios 8:12 and 4:6 are equivalent
Yes because you can divide 8:12 by a factor of 2 to get 4:6 and you can multiply 4:6 by a factor of 2 and get 8:12.
Calculate the range of these numbers: 15, 22, 8, 30, 5.
25
A group has 10 dogs and 15 cats. What is the ratio of dogs to total pets?
2:5 or 2 to 5
If you can buy 5 pounds of apples for $10, what is the cost per pound of apples?
$2.00/lb
If a recipe is for 2/3 of a cup of sugar and you want to double it, how much sugar do you need?
4/3 or 1 and 1/3
If a map scale shows that 1 inch equals 25 miles, what is the equivalent ratio for 2 inches?
2:50, 2 inches equals 50 miles
Find the mean of the following scores: 85, 90, 75, 80, 95.
85