Percentages and Ratio

Question 1

Find 16% of 40.

Answer 1

16% is the same as 16/100
To find the 16% of 40, multiply 16/100 by 40: 16/100 x 40/1 = 640/100
Answer = 6.4

Question 2

What percent of 60 is 35?

Answer 2

(35/60) x 100 = 0.5833×100
Answer = 58.33%

Question 3

A truck is carrying grape juice, orange juice, and pear juice bottles in a ratio 2 : 3 : 2. If there are 20 grape juice bottles, how many orange juice bottles are there?

Answer 3

20 (grape juice) ÷ 2 (ratio) = 10
10 x 30 = 30 (orange juice)
There are 30 orange juice bottles

Question 4

Divide $700 in the ration 5 : 3 : 2

Answer 4

5 + 3 + 2 = 10
700 ÷ 10 = 70
70 x 5 = 350, 70 x 3 = 210, 70 x 2 = 140
Answer = $350, $210, $140

Question 5

What is 25% of 200?

Answer 5

50

Question 6

If a shirt costs $40 after a 20% discount, what was its original price?

Answer 6

$50

Question 7

True or False: 30% is equivalent to the fraction 3/10.

Answer 7

True

Question 8

If a student scored 18 out of 30 marks, what percentage did they score?

Answer 8

60%

Question 9

What is the ratio of 8 to 12 in simplest form?

Answer 9

2:3

Question 10

Fill in the blank: 150% as a decimal is _____

Answer 10

1.5

Question 11

If a recipe calls for a ratio of 3:2 of flour to sugar, how much sugar is needed for 9 cups of flour?

Answer 11

6 cups

Question 12

What is 15% of 80?

Answer 12

12

Question 13

True or False: A ratio can be expressed as a fraction.

Answer 13

True

Question 14

How do you convert a percentage to a decimal?

Answer 14

Divide by 100

Question 15

If there are 5 boys and 3 girls in a class, what is the ratio of boys to girls?

Answer 15

5:3

Question 16

What is the percentage increase from 50 to 75?

Answer 16

50%

Question 17

Fill in the blank: 0.75 as a percentage is _____

Answer 17

75%

Question 18

If a car’s value decreases from $20,000 to $15,000, what is the percentage decrease?

Answer 18

25%

Question 19

What is the ratio of 10 to 25 in simplest form?

Answer 19

2:5

Question 20

True or False: The sum of the parts in a ratio always equals 1.

Answer 20

False

Question 21

What is 40% of 250?

Answer 21

100

Question 22

If a class has 30 students and 12 are girls, what percentage are boys?

Answer 22

60%

Question 23

How do you find the total from a percentage? Fill in the blank: Total = Part / _____

Answer 23

Percentage

Question 24

What is the ratio of 2 hours to 90 minutes?

Answer 24

4:3

Question 25

If a product costs $80 and is marked up by 25%, what is the new price?

Answer 25

$100

Question 26

What is 5% of 500?

Answer 26

25

Question 27

True or False: A percentage can be greater than 100%.

Answer 27

True

Question 28

If a bag contains 4 red balls and 6 blue balls, what is the ratio of red balls to total balls?

Answer 28

2:5

Question 29

What is the percentage of 15 out of 60?

Answer 29

25%

Question 30

Fill in the blank: The decimal 0.20 is equivalent to _____%

Answer 30

20%