Basic Ratios
There are 2 cats and 3 dogs in the yard. Write the ratio of cats to dogs.
2:3 or 2 to 3 or 2/3
Is the ratio 2:3 equal to 4:6?
YES! Divide by 2
A runner goes 6 laps in 12 minutes. What is the unit rate in laps per minute?
0.5 or 1/2 laps per minute
A pack of 4 markers costs $3.60. What is the cost per marker?
$0.90 per marker
Which is cheaper per candy bar: 5 bars for $4.50 or 2 bars for $2?
5 for $4.50
How many centimeters are in 3 meters?
300 cm
There are 7 ushers and 11 technicians helping at the Harper Middle School fall play. What is the ratio of technicians to all helpers?
11/18, 11:18, or 11 to 18
Which team has the better win ratio? Team A with 8 wins and 12 games, or Team B with 6 wins and 8 games?
Team B
A factory produces 200 toys in 10 hours. How many toys per hour?
20 toys per hour
A box of 6 muffins costs $5.10. What is the cost per muffin?
$0.85 per muffin
Who runs faster: Anna runs 3 miles in 30 minutes, or Ben runs 4 miles in 50 minutes?
Convert 5 kilograms to grams.
5,000 g
A basket has 5 apples and 7 oranges. Write the ratio of apples to total fruit.
5:12
The ratio of boys to girls in Ella’s grade is 3 to 4. The ratio of boys to girls in Minh’s grade is 4 to 5. Each grade has a total of 20 girls. How many boys are in each grade?
Ella’s grade has 15 boys, and Minh’s grade has 16 boys.
A car travels 90 miles in 3 hours. What is the unit rate in miles per hour?
30 miles per hour, 30:1
A 7-pound bag of rice costs $11.55. What is the cost per pound?
$1.65 per pound
Which is the better buy: 12 ounces of trail mix for $6.84 or 15 ounces for $8.55?
15 ounces for $8.55
A race is 1,500 meters long. How many kilometers is that?
1.5 km
In a class, there are 8 boys and 12 girls. Write the ratio of girls to boys in simplest form.
3:2
At an amusement park, 25 people ride the race cars every 30 minutes, and 20 people ride the spinning swings every 20 minutes. Which ride will have more riders each hour? How many more?
The spinning swings will have 10 more riders each hour.
A bicyclist rides 45 miles in 3 hours. What is the speed in miles per hour?
15 mph
A 9-pack of juice boxes costs $7.38. What is the cost per juice box?
$0.82 per juice box
The red car travels 180 miles in 3 hours. The blue car travels 200 miles in 4 hours. Which has the greater speed?
The red car.
Convert 3 feet to inches.
What is 36 inches
On a bus, there are 15 adults and 10 children. Write the ratio of children to adults in simplest form.
2:3
A recipe uses 2 cups of sugar for every 5 cups of flour. Another recipe uses 3 cups of sugar for every 7 cups of flour. Which recipe has a higher sugar-to-flour ratio?
The first recipe, 2:5?
A printer prints 360 pages in 12 minutes. How many pages per minute?
30 pages per minute
A 15-ounce jar of peanut butter costs $6.75. What is the cost per ounce?
$0.45 per ounce
Which printer is faster: Printer A prints 135 pages in 9 minutes, or Printer B prints 160 pages in 12 minutes?
Printer A
A recipe calls for 8 cups of milk. How many quarts is that?
2 quarts