Ratios, Proportions, and Percents: Master the Basics with Interactive Quizzes

Question 1

A map has a scale of 1 centimeter to 250,000 centimeters. On the map, the distance between two cities is 5 centimeters. What is the actual distance between the two cities?

Accepted Answer

1250 kilometers

Answer

250,000 kilometers

Answer

5 kilometers

Question 2

To make 24 chocolate chip cookies, you need 2 cups of flour. How many cups of flour do you need to make 48 cookies?

Accepted Answer

4 cups

Answer

1 cup

Answer

2 cups

Answer

8 cups

Question 3

A stock's price increased by 15%. If the original price was $50, what's the new price?

Accepted Answer

$57.50

Answer

$60

Answer

$42.50

Answer

$75

Question 4

What percentage is equivalent to the fraction 1/4?

Accepted Answer

25%

Answer

50%

Answer

75%

Answer

100%

Question 5

A survey asked 100 students about their favorite subject. 60 students said they prefer math. What percentage of students prefer math?

Accepted Answer

60%

Answer

30%

Answer

40%

Answer

70%

Question 6

A rectangular garden is 10 feet long. If the length is increased by 20%, what is the new length?

Accepted Answer

12 feet

Answer

15 feet

Answer

18 feet

Question 7

A store first marks up the price of a game by 20%, and then later gives a 10% discount on the marked-up price. If the final price of the game is $54, what was the original price?

Accepted Answer

$45

Answer

$48

Answer

$50

Answer

$52

Question 8

Express 45% as a fraction.

Accepted Answer

45/100

Answer

9/20

Answer

45/10

Answer

90/200

Question 9

Which method is NOT used to calculate percent of change?

Accepted Answer

Dividing the new value by the original value and subtracting 1.

Answer

Subtracting the original value from the new value and dividing the difference by the original value.

Answer

Dividing the change in value by the original value.

Answer

Multiplying the change in value by 100.

Question 10

A company increased its sales by 15%. If the original sales were $100,000, determine the new sales amount.

Accepted Answer

$125,000

Answer

$100,000

Answer

$115,000

Answer

$135,000

Question 11

A clothing store is offering a 20% discount on all items. What will be the sale price of a dress that originally costs $40?

Accepted Answer

$32

Answer

$48

Answer

$20

Question 12

A restaurant offers a 15% discount on the bill for customers who reserve online. If the original bill is $50, what will be the total after the online discount is applied?

Accepted Answer

$42.50

Answer

$35.00

Answer

$57.50

Answer

$25.00

Question 13

Which of the following is NOT a way to write a ratio? Choose the option that does NOT represent a ratio notation.

Accepted Answer

a/b x 100

Answer

a:b

Answer

a/b

Answer

a to b

Question 14

Which of the following is a proportion?

Accepted Answer

a/b = c/d

Answer

a * b = c * d

Answer

a - b = c - d

Answer

a + b = c + d

Question 15

Which of the following is greater than 50%?

Accepted Answer

3/5

Answer

2/7

Answer

1/3

Answer

1/4

Question 16

Which of the following proportions is true?

Accepted Answer

5/8 = 15/24

Answer

5/8 = 15/20

Answer

5/7 = 15/21

Question 17

What percent of 200 is 50?

Accepted Answer

25%

Answer

10%

Answer

75%

Answer

50%

Question 18

Convert 25% into a fraction.

Accepted Answer

1/4

Answer

1/5

Answer

1/3

Question 19

Convert 75% into a decimal.

Accepted Answer

0.75

Answer

1.5

Answer

0.85

Answer

0.5

Question 20

A recipe requires 2 cups of flour and 1 cup of sugar. Establish the ratio of flour to sugar.

Accepted Answer

2:1

Answer

1:2

Answer

1:1

Answer

3:2

Question 21

Which of these is the highest percent?

Accepted Answer

95%

Answer

7/8

Answer

0.925

Answer

0.8

Question 22

In a class, the ratio of boys to girls is 2:3. If there are 18 boys in the class, how many girls are there?

Accepted Answer

27

Answer

18

Answer

36

Answer

12

Question 23

What percent of 60 is 24?

Accepted Answer

40%

Answer

60%

Answer

20%

Answer

80%

Question 24

A car travels 480 miles on 12 gallons of gas. How many miles per gallon does the car get?

Accepted Answer

40 mpg

Answer

20 mpg

Answer

60 mpg

Answer

80 mpg

Question 25

Apples are sold for $0.50 per pound. What is the cost of 3.5 pounds of apples?

Accepted Answer

$1.75

Answer

$1.25

Answer

$2.50

Question 26

A rectangular garden is 10 feet long and 6 feet wide. What is the ratio of the garden's length to its perimeter?

Accepted Answer

1:4

Answer

2:1

Answer

1:2

Answer

3:1

Question 27

What is the ratio of 4 meters to 2 kilometers? (Convert meters to kilometers first)

Accepted Answer

1:500

Answer

2:1

Answer

1:2

Question 28

Which of the following is NOT a valid ratio?

Accepted Answer

12:0

Answer

3:5

Answer

11:13

Answer

7:9

Question 29

Express 75% as a fraction:

Accepted Answer

3/4

Answer

2/3

Answer

1/4

Question 30

A scale drawing of a building has a scale of 1 cm : 2 m. If the height of the building in the drawing is 12 cm, what is its actual height?

Accepted Answer

24 m

Answer

12 m

Answer

60 m

Answer

48 m

Question 31

A cookie recipe uses 2 cups of flour for every 3 cups of sugar. If you only want to use 1 cup of flour, how much sugar should you use?

Accepted Answer

1.5 cups

Answer

2 cups

Answer

1 cup

Answer

3 cups

Question 32

Which of these ratios is equal to 4:5?

Accepted Answer

8:10

Answer

5:4

Answer

1:2

Answer

6:7

Question 33

A store is having a sale with a 20% discount on all items. A shirt that originally costs $30 is on sale. How much will the shirt cost after the discount?

Accepted Answer

$24

Answer

$10

Answer

$6

Answer

$36

Question 34

On a test with 25 questions, a student answered 18 questions correctly. What percentage of the questions did the student answer correctly?

Accepted Answer

72%

Answer

25%

Answer

18%

Answer

80%

Question 35

What is the value of *x* in the proportion 2/3 = *x*/12?

Accepted Answer

8

Answer

6

Answer

18

Answer

4

Question 36

What is 25% of 80?

Accepted Answer

20

Answer

10

Answer

100

Answer

40

Question 37

A pair of shoes costs $50. The store is offering a 15% discount. How much will the discount be?

Accepted Answer

$7.50

Answer

$5

Answer

$35

Answer

$15

Question 38

What is 25% of 120?

Accepted Answer

30

Answer

15

Answer

48

Answer

60

Question 39

A store is having a sale where all items are 20% off. If a shirt normally costs $30, how much will it cost during the sale?

Accepted Answer

$24

Answer

$25

Answer

$36

Answer

$6

Question 40

On a test with 25 questions, a student got 18 questions correct. What percentage of the questions did the student answer correctly?

Accepted Answer

72%

Answer

28%

Answer

68%

Answer

80%

Question 41

A bag contains red and blue marbles. The ratio of red marbles to blue marbles is 4:7. If there are 28 blue marbles, how many red marbles are there?

Accepted Answer

16

Answer

49

Answer

32

Answer

21

Question 42

A cookie recipe uses 1/2 cup of sugar to make 4 servings. How much sugar is needed to make 8 servings?

Accepted Answer

1 cup

Answer

3/4 cup

Answer

1/4 cup

Answer

2 cups

Question 43

A recipe for lemonade calls for 2 cups of water and 1 cup of lemon juice. If you want to make a larger batch with 6 cups of water, how many cups of lemon juice will you need?

Accepted Answer

3 cups

Answer

2 cups

Answer

4 cups

Question 44

The ratio of boys to girls in a classroom is 3:4. If there are 12 girls in the classroom, how many boys are there?

Accepted Answer

9 boys

Answer

12 boys

Answer

36 boys

Answer

16 boys

Question 45

A store is having a 25% off sale. If a shirt originally costs $20, how much will you save during the sale?

Accepted Answer

$5

Answer

$10

Answer

$2.50

Answer

$15

Question 46

A student scored 80% on a test with 50 questions. How many questions did they answer correctly?

Accepted Answer

40 questions

Answer

10 questions

Answer

50 questions

Answer

25 questions

Question 47

A map has a scale of 1:50,000. If two cities are 10 cm apart on the map, what is the actual distance between them?

Accepted Answer

5 km

Answer

500 km

Answer

5,000 km

Answer

50 km

Question 48

A fruit basket contains 3 apples, 5 oranges, and 2 bananas. What is the ratio of apples to the total number of fruits?

Accepted Answer

3:10

Answer

10:3

Answer

5:10

Answer

3:5

Question 49

A store sells 100 pairs of shoes in a week. If 60% of the shoes sold were sneakers, how many pairs of sneakers were sold?

Accepted Answer

60 pairs

Answer

40 pairs

Answer

16 pairs

Answer

10 pairs

Question 50

A painting is 30 inches long and 20 inches wide. What is the ratio of the length to the width?

Accepted Answer

3:2

Answer

2:1

Answer

2:3

Answer

1:2

Question 51

If 20% of a number is 15, what is the number?

Accepted Answer

75

Answer

30

Answer

3

Answer

120

Question 52

A recipe calls for 1/2 cup of flour for every 1/4 cup of sugar. If you use 1 cup of flour, how much sugar will you need?

Accepted Answer

1/2 cup

Answer

1 cup

Answer

2 cups

Answer

1/4 cup