Understanding Ratios and Percentages

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, using examples like raw and ripe mangoes.

What is a ratio?

• A comparison of two quantities by subtraction

• A comparison of two quantities by addition

• A comparison of two quantities by division

• A comparison of two quantities by multiplication

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

• 5 plus 7

• 5 is to 7

• 7 is to 5

• 7 minus 5

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

• 5

• 7

• 2

• 12

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

• 4 minus 13

• 13 plus 4

• 4 is to 13

• 13 is to 4

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

• 5 is to 9

• 9 is to 5

• 10 is to 18

• 18 is to 10

What is the ratio of cows to the total number of animals if there are 10 cows and 28 animals in total?

• 5 is to 14

• 10 is to 28

• 28 is to 10

• 14 is to 5

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

• 70%

• 100%

• 35%

• 50%

What is the percentage form of the ratio 15 is to 100?

• 100%

• 85%

• 15%

• 50%

If a ratio is expressed as 15 is to 100, what is its equivalent percentage?

• 85%

• 50%

• 100%

• 15%

What is the equivalent percentage of the ratio 35 is to 100?

• 35%

• 100%

• 50%

• 85%