Practical Problems
Solving Proportions
Scale Drawing
Practical Problems
Challenge
100

A zookeeper is ordering food for the zebras. She knows that 3 zebras eat 12 pounds

of hay every day. How many pounds of hay should she order for 12 zebras?

48 pounds of hay

100

Find x.

4/5 = x/15

x = 12

100

The scale on a treasure-map shows that 5 centimeters = 4 kilometers.
What number of centimeters on the map represents an actual distance of 10 kilometers?

12.5 centimeters

100

Crayola can make 2400 crayons in 4 minutes. How many crayons can they make in 15 minutes?

9,000 crayons

100

How many math teachers are at Cortines?

7

200

The human heart beats an average of 4,320 times an hour. At this rate, about how many times will a person's heart beat in one full day?

103,680 beats in 24 hours

200

Solve for a.

120/300 = a/100

a = 40

200

The layout of the Katherine's new kitchen shows a scale of 1 centimeter = 3¼ feet. If the length of the kitchen is 4¾ cm on the scale drawing, what is the actual length, in feet, of the kitchen?

15.44 feet.

200

Breanna purchased 8 oranges for $10 at the grocery store. If you need to buy 3 oranges, how much can you expect to pay?

$3.75

200

What university did your teacher go to?

UCLA

300

Stephanie ran 3 miles in 30 minutes. At this rate, what is the total number of minutes it will take Stephanie to run 2 miles?

It will take Stephanie 20 minutes to run 2 miles.

300

Solve for g.

g/24 = 8/10

g = 19.2

300

A scale drawing of an airplane is 18 centimeters long with a scale of 24 feet = 2 centimeter. What is the length of the actual plane?

216 feet long

300

Anne received a score of 84% on a test with 25 questions. How many did she get correct?

21 questions correct.

300

What has hands but doesn't clap?

A clock

400

Patty went on a trip. The currency exchange rate for this trip is shown.

1 U. S. dollar = 1.34 Turkish lire

Patty bought an item that cost 30 U.S. dollars. What is  the cost of this item in Turkish lire?

40.2 Turkish Lire

400

Solve for x. 

75/100 = x/18

x = 13.5

400

A drawing of a cereal box has a scale of 1 in to 1 ft. If the drawing is 1.5 inches long, what is the actual height of the cereal box?

1.5 feet tall

400

The ratio of dogs to cats at the vet is 2:3. If there are 25 animals, how many are cats?

15 cats

400

What gets wet while drying?

A towel

500

Clinton earns $12 per hour cutting grass. He earned a total of $162 last week cutting

grass. Exactly how many hours did he spend cutting grass last week?

13.5 hours

500

Solve for t.

6/11 = t/3

t = 1.64

500

A scale drawing of a rectangular field is 12 inches by 3 inches, with a scale of 15 yards = 1 inch. What would be the size of the actual field?

180 yards by 45 yards

500

Darcia made a snack mix using the following recipe.

1 ¼ cups granola, ¾ cup peanuts, ½ cup raisins, ¼ cup chocolate chips. If she used 3 cups of granola, how many cups of raisins would be needed?

1.2 cups of raisins

500

What can you hold in your right hand, but never in your left hand?

Your left hand