Ratios and Percentages in Context

The video tutorial covers the concept of ratios, explaining them as fractions and demonstrating their application in various scenarios, such as student preferences, paint mixing, and time management. It also includes a section on calculating percentages, using a real-world example of marines in a battle. The tutorial emphasizes setting up and solving equations using ratios and percentages.

What is the ratio of students who prefer reading to those who prefer math in Mrs. Knowles' class?

• 5 to 8

• 3 to 5

• 5 to 3

• 3 to 8

If there are 24 students in total, how many students prefer math?

• 18

• 15

• 12

• 9

What is the ratio of forest green to antique ivory in the paint mixture?

• 1 to 3

• 3 to 1

• 2 to 3

• 3 to 2

How many quarts of forest green paint are needed if Julia needs 8 gallons in total?

• 16 quarts

• 24 quarts

• 32 quarts

• 40 quarts

If Julia needs 8 gallons of paint, how many gallons of antique ivory does she need?

• 1 gallon

• 2 gallons

• 3 gallons

• 4 gallons

What is the ratio of time Mary spends on sports to schoolwork?

• 2 to 1

• 1 to 2

• 2 to 3

• 3 to 2

If Mary spends 4 hours on sports, how many hours does she spend on schoolwork?

• 4 hours

• 5 hours

• 6 hours

• 7 hours

What percentage of marines remained after the battle?

• 43.5%

• 65.5%

• 75.5%

• 56.5%

How many marines were killed if 932 remained out of 1650?

• 732

• 818

• 718

• 832

What is the percentage of marines who were killed?

• 33.5%

• 53.5%

• 43.5%

• 63.5%