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

Question 1

A clothing store offers a 10% discount to customers with loyalty cards. If a shirt originally costs $30, how much will a customer with a loyalty card pay?

Accepted Answer

$27.00

Answer

$24.00

Answer

$21.00

Question 2

A mixture contains 3 parts water to 1 part antifreeze. If there are 12 liters of water in the mixture, how much antifreeze is there?

Accepted Answer

6 liters

Answer

3 liters

Answer

4 liters

Answer

8 liters

Question 3

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

Accepted Answer

40

Answer

35

Answer

45

Answer

50

Question 4

A company's profit increased by 15% last year. If their profit was $100,000 the previous year, what is their profit this year?

Accepted Answer

$110,000

Answer

$105,000

Answer

$115,000

Answer

$120,000

Question 5

A car traveled 120 miles in 2 hours. What is its average speed?

Accepted Answer

60 mph

Answer

30 mph

Answer

90 mph

Question 6

Solve for x: 2/5 = x/10

Accepted Answer

4

Answer

2

Answer

6

Answer

8

Question 7

Which of the following expressions represents a ratio?

Accepted Answer

2:3

Answer

1/2

Answer

50%

Answer

100

Question 8

Which of the following is not an application of ratios?

Accepted Answer

Determining probability

Answer

Comparing two quantities

Answer

Calculating scale

Answer

Finding missing values in proportions

Question 9

A map has a scale of 1 cm : 5 km. If the distance between two cities on the map is 4 cm, what is the actual distance between the cities?

Accepted Answer

20 km

Answer

10 km

Answer

5 km

Question 10

A company wants to increase its sales by 15%. If the current sales are $500,000, what is their target sales goal?

Accepted Answer

$575,000

Answer

$625,000

Answer

$525,000

Answer

$475,000

Question 11

A mixture contains 3 parts water to 2 parts vinegar. If there are 6 liters of water in the mixture, how many liters of vinegar are there?

Accepted Answer

4 liters

Answer

6 liters

Answer

2 liters

Answer

8 liters

Question 12

A car travels 120 miles in 2 hours. What is the car's average speed in miles per hour?

Accepted Answer

60 mph

Answer

30 mph

Answer

120 mph

Answer

90 mph

Question 13

A bag of candy contains 12 red candies, 8 blue candies, and 4 green candies. What is the ratio of red candies to green candies?

Accepted Answer

3:1

Answer

1:2

Answer

2:1

Answer

1:3

Question 14

A discount coupon gives 15% off the regular price. If the regular price of an item is $40, what is the discount amount?

Accepted Answer

$6

Answer

$20

Answer

$10

Answer

$15

Question 15

A population of 1000 people increases by 5% each year. What will be the population after 3 years?

Accepted Answer

1157.6

Answer

1050

Answer

1200

Answer

1331

Question 16

A store is offering a 15% discount on all items. If a shirt originally costs $30, what is the sale price of the shirt?

Accepted Answer

$25.50

Answer

$33.00

Answer

$28.50

Answer

$22.50

Question 17

Two recipes for lemonade have the following ratios of lemon juice to water: Recipe A: 1:3, Recipe B: 2:5. Which recipe will make the more concentrated lemonade?

Accepted Answer

Recipe B

Answer

Both recipes are equally concentrated.

Answer

Recipe A

Answer

There is not enough information to tell.

Question 18

A store is having a sale where all prices are marked down by 15%. If a pair of shoes originally cost $50, what is the sale price?

Accepted Answer

$42.50

Answer

$55

Answer

$45

Answer

$35

Question 19

A recipe for fruit salad calls for 3 cups of strawberries for every 2 cups of blueberries. If you want to make a smaller batch with only 1 cup of blueberries, how many cups of strawberries do you need?

Accepted Answer

1.5 cups

Answer

1 cup

Answer

2 cups

Question 20

A school has 600 students, and 40% of them are girls. How many girls are in the school?

Accepted Answer

240

Answer

300

Answer

480

Answer

120

Question 21

A recipe calls for 2 cups of flour for every 3 cups of sugar. If you have 6 cups of flour, how many cups of sugar will you need?

Accepted Answer

9 cups

Answer

4 cups

Answer

6 cups

Answer

12 cups

Question 22

A store owner buys a pair of shoes for $40 and sells them for $60. What is the percentage markup?

Accepted Answer

50%

Answer

100%

Answer

25%

Answer

33.3%

Question 23

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

Accepted Answer

3:5

Answer

2:5

Answer

5:3

Answer

3:2

Question 24

A recipe for cookies calls for 2 cups of flour and 1 cup of sugar. If you want to make a smaller batch using only 1 cup of flour, how much sugar should you use?

Accepted Answer

1/2 cup

Answer

3/4 cup

Answer

1 cup

Answer

2 cups

Question 25

A map has a scale of 1 cm : 10 km. If the distance between two cities on the map is 5 cm, what is the actual distance between the cities?

Accepted Answer

50 km

Answer

100 km

Answer

5 km

Answer

10 km

Question 26

A store is having a 20% off sale on all items. If a shirt originally costs $25, how much will it cost after the discount?

Accepted Answer

$20

Answer

$30

Answer

$15

Answer

$25

Question 27

A fruit salad is made with 3 parts strawberries, 2 parts blueberries, and 1 part raspberries. If there are 12 strawberries in the salad, how many blueberries are there?

Accepted Answer

8

Answer

4

Answer

6

Answer

12

Question 28

A school has 600 students, and 35% of them are girls. How many boys are there in the school?

Accepted Answer

390

Answer

210

Answer

450

Question 29

A store sold 120 items last week. This week, the store sold 150 items. What is the percent increase in sales from last week to this week?

Accepted Answer

25%

Answer

15%

Answer

10%

Answer

30%

Question 30

A recipe for punch calls for 2 cups of cranberry juice, 1 cup of orange juice, and 3 cups of soda. What is the ratio of cranberry juice to soda in the punch?

Accepted Answer

2:3

Answer

1:2

Answer

3:2

Question 31

If 4 out of 5 apples are red, what percentage of the apples are red?

Accepted Answer

80%

Answer

60%

Answer

40%

Answer

20%

Question 32

A car travels 150 miles in 3 hours. At this rate, how many miles will it travel in 5 hours?

Accepted Answer

250 miles

Answer

150 miles

Answer

300 miles

Answer

75 miles

Question 33

A store is selling 3 pairs of socks for $10. At this rate, how much would 9 pairs of socks cost?

Accepted Answer

$30

Answer

$15

Answer

$20

Answer

$40

Question 34

A recipe for cookies calls for 2 cups of flour to 1 cup of sugar. If you want to make a larger batch with 6 cups of flour, how many cups of sugar do you need?

Accepted Answer

3 cups

Answer

2 cups

Answer

6 cups

Answer

4 cups

Question 35

A map has a scale of 1 inch : 10 miles. If the distance between two cities on the map is 3 inches, what is the actual distance between the cities?

Accepted Answer

30 miles

Answer

33 miles

Answer

13 miles

Answer

10 miles

Question 36

A store is having a 25% off sale. If a shirt originally costs $20, how much will it cost after the discount?

Accepted Answer

$15

Answer

$10

Answer

$5

Answer

$25

Question 37

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

Accepted Answer

40

Answer

50

Answer

10

Answer

25

Question 38

A fruit salad is made with 3 parts strawberries, 2 parts blueberries, and 1 part raspberries. If there are 12 blueberries in the salad, how many strawberries are there?

Accepted Answer

18

Answer

12

Answer

6

Answer

24

Question 39

A store sells 100 pairs of shoes. 40 pairs are black, 30 pairs are brown, and the rest are white. What percentage of the shoes are white?

Accepted Answer

30%

Answer

40%

Answer

70%

Answer

60%

Question 40

The price of a house increased from $200,000 to $250,000. What is the percent increase?

Accepted Answer

25%

Answer

10%

Answer

50%

Answer

125%

Question 41

A store had 200 customers on Monday. On Tuesday, they had 10% fewer customers. How many customers did they have on Tuesday?

Accepted Answer

180

Answer

190

Answer

220

Answer

210

Question 42

A recipe for lemonade calls for 4 cups of water, 2 cups of lemon juice, and 1 cup of sugar. What is the ratio of water to lemon juice?

Accepted Answer

2:1

Answer

1:2

Answer

1:4

Answer

4:1

Question 43

A farmer harvested 500 apples. If 20% of the apples were rotten, how many apples were good?

Accepted Answer

400

Answer

200

Answer

300

Answer

100