Ratio Basics
A box contains 5 red pens, 3 blue pens, and 2 black pens. What is the ratio of blue pens to the total number of pens?
3:10
If a 6-pack of soda costs $4.50, what is the unit price per can?
$0.75 per can
A recipe for fruit punch uses 2 cups of grape juice for every 5 cups of apple juice. If you use 15 cups of apple juice, how much grape juice is needed?
6 cups.
A walker travels 6 miles in 2 hours. What is their constant speed in miles per hour?
3 miles per hour.
If there are 4 stars and 10 circles. Select all that are true:
A) The ratio of stars to circles is 2:5.
B) There are 2.5 circles for every star.
C) The ratio of circles to stars is 4 to 10.
A and B.
Store A sells 4 pounds of apples for $5.00. Store B sells 5 pounds of apples for $6.00. Which store has the better buy?
Store B ($1.20 per lb) is cheaper than Store A ($1.25 per lb).
Recipe X: 2 scoops of cocoa to 6 oz of milk. Recipe Y: 3 scoops of cocoa to 9 oz of milk. Do these taste the same? Why?
Yes. Both simplify to a 1:3 ratio.
A cyclist travels at a constant speed of 12 miles per hour. How long will it take them to travel 30 miles?
2.5 hours (or 2 hours and 30 minutes).
In a bouquet, there are 3 roses for every 2 tulips. If there are 30 flowers in total, how many are roses?
18 roses
If 8 tickets to a school play cost $100, how much would 12 tickets cost at the same rate?
$150. (Unit rate is $12.50 per ticket; $12.50 x 12 = $150).
To get a specific shade of green, you mix 3 drops of yellow for every 7 drops of blue. If you have a total of 80 drops of paint, how many drops are yellow?
24 drops.
A car travels 3 miles every 12 minutes. Using this rate, how many minutes does it take to travel 10 miles?
40 minutes. (1 mile every 4 minutes; 10 x 4 = 40).