Understanding Ratios and Their Applications

The video tutorial introduces the concept of ratios, explaining how they compare two quantities of the same kind by division. It provides examples using kites and balloons, puppies and dogs, and a story problem involving cows and hens. The tutorial also covers how to express ratios as percentages, emphasizing the importance of reducing ratios to their lowest terms.

What is a ratio?

• A comparison of two quantities by division

• A comparison of two quantities by subtraction

• A comparison of two quantities by multiplication

• A comparison of two quantities by addition

How is the ratio of 5 kites to 7 balloons written?

• 5-7

• 7-5

• 7:5

• 5:7

What is the first term in the ratio 5:7?

• 7

• 2

• 5

• 12

Which of the following ratios is equivalent to 5:7?

• 5:9

• 10:14

• 7:5

• 14:10

If a ratio is expressed as 7:5, what is the reciprocal ratio?

• 5:7

• 7:5

• 2:3

• 1:1

How can the ratio of 13 puppies to 4 dogs be expressed?

• 4-13

• 13-4

• 4:13

• 13:4

What is the simplified form of the ratio 18 hens to 10 cows?

• 10:18

• 18:10

• 5:9

• 9:5

What is the ratio of cows to the total number of animals if there are 10 cows and 18 hens?

• 5:9

• 10:28

• 5:14

• 9:5

How do you express the ratio 35:100 as a percentage?

• 35%

• 70%

• 100%

• 50%

What is the percentage form of the ratio 15 raw mangoes to 100 ripe mangoes?

• 100%

• 15%

• 50%

• 85%