Ratio/Rates STAAR Questions

There are 63 dogs at a dog show. The ratio of the number of large dogs to the number of small dogs is 4:3. How many dogs at the dog show are small dogs?

• 36

• 21

• 9

• 27

A house painter mixed 5 gal of blue paint with every 9 gal of yellow paint in order to make a green paint. Which ratio of gallons of blue paint to gallons of yellow paint will make the same shade of green paint?

• 30:54

• 6:10

• 10:45

• 27:15

Avery and Mason are both swimming laps in the same swimming pool.
- Avery can swim 3 laps in 2 minutes.
- Mason can swim 5 laps in 4 minutes.
Based on these rates, which statement is NOT true?

• Avery can swim 6 laps in 4 minutes.

• Mason can swim 2.5 laps in 2 minutes.

• Avery can swim 2 laps farther than Mason in 8 minutes.

• Mason can swim 0.5 lap farther than Avery in 2 minutes.

A baseball traveled 330 feet in 5 seconds. Which rate is equivalent to the rate at which the baseball traveled?

• 55 feet per second

• 66 feet per second

• 55 seconds per foot

• 66 seconds per foot

A window washer cleaned 38 windows in 2 hours. At this rate, how many windows did he clean in 7 hours? Record your answer and fill in the bubbles on your answer document. Be sure to use the correct place value.

• 133

• 120

• 140

• 150

A recipe requires 2 cups of flour for every 3 cups of sugar. If you have 9 cups of sugar, how many cups of flour do you need?

• 6 cups

• 3 cups

• 4 cups

• 5 cups

A car travels 180 miles in 3 hours. What is the average speed of the car in miles per hour?

• 60 mph

• 50 mph

• 70 mph

• 55 mph

The ratio of the number of boys to the number of girls in a choir is 5 to 4. There are 60 girls in the choir. How many boys are in the choir?

• 75

• 61

• 48

• 80

In Austin, Texas, 8 bats ate 40 grams of insects in one night. At this rate, how many grams of insects could 64 bats eat in one night? Record your answer and fill in the bubbles on your answer document. Be sure to use the correct place value.

• 320

• 400

• 500

• 600

A barrel contained 60 gallons of water. Water leaked out of the barrel at a rate of 5 gallons every 3 days. At this rate, how many days did it take for all 60 gallons of water to leak out of the barrel?

• 20 days

• 12 days

• 100 days

• 36 days