Questions on Ratios and Equivalent Ratios
Multiple-choice questions on Ratios and Equivalent Ratios, each with five alternatives (A–E). The answers are provided at the end in full form.
Ratios and Equivalent Ratios – Multiple-Choice Questions
1. What is the simplified form of the ratio 18:24?
A) 2:3
B) 3:4
C) 4:3
D) 6:8
E) 9:12
2. If the ratio of boys to girls is 5:7, how many boys are there if there are 42 girls?
A) 24
B) 28
C) 30
D) 35
E) 40
3. Which ratio is equivalent to 6:8?
A) 3:5
B) 9:12
C) 12:20
D) 18:24
E) 15:18
4. What is the ratio of 3 feet to 36 inches? (Note: 1 foot = 12 inches)
A) 1:1
B) 1:3
C) 3:1
D) 1:2
E) 3:12
5. Which of the following is not equivalent to 2:5?
A) 4:10
B) 6:15
C) 8:20
D) 9:25
E) 10:25
6. In a bag with red and blue marbles in the ratio 3:2, if there are 15 red marbles, how many blue marbles are there?
A) 5
B) 8
C) 10
D) 12
E) 20
7. Which of the following ratios is equal to 7:14?
A) 3:6
B) 5:10
C) 9:18
D) 4:9
E) 6:14
8. What is the ratio of 2 dozen eggs to 18 eggs?
A) 4:3
B) 2:3
C) 3:2
D) 4:5
E) 1:2
9. If a map scale is 1:5000, what real distance does 2 cm on the map represent?
A) 1 km
B) 100 m
C) 5000 cm
D) 10,000 cm
E) 500 cm
10. Which ratio is equivalent to 9:12?
A) 3:4
B) 6:9
C) 12:16
D) 5:6
E) 4:3
11. The ratio of sugar to flour in a recipe is 2:3. If you use 1 cup of sugar, how much flour is needed?
A) 1 cup
B) 1.5 cups
C) 2 cups
D) 2.5 cups
E) 3 cups
12. Which of the following ratios is not equivalent to 4:6?
A) 2:3
B) 8:12
C) 12:18
D) 10:15
E) 6:10
13. What is the simplified form of 45:60?
A) 2:3
B) 3:4
C) 4:5
D) 5:6
E) 9:12
14. If the ratio of apples to oranges is 4:9, how many apples are there when there are 27 oranges?
A) 9
B) 10
C) 11
D) 12
E) 13
15. What is the ratio of 90 minutes to 2 hours? (1 hour = 60 minutes)
A) 2:1
B) 3:2
C) 1:2
D) 3:4
E) 4:3
16. Which ratio is not equivalent to 5:10?
A) 1:2
B) 10:20
C) 15:30
D) 8:16
E) 6:10
17. A recipe uses ingredients in the ratio 1:2:3 (salt:sugar:flour). If there are 2 cups of sugar, how many cups of flour are used?
A) 1
B) 2
C) 3
D) 4
E) 6
18. Which of the following is the simplest form of the ratio 100:250?
A) 1:2
B) 2:3
C) 2:5
D) 4:5
E) 3:5
19. If 3 pens cost $9, what is the cost per pen in ratio form?
A) 1:3
B) 3:1
C) 1:1
D) 3:9
E) 1:2
20. Which of these ratios is equivalent to 12:16?
A) 6:8
B) 4:5
C) 5:7
D) 10:14
E) 7:9
- Questions on Ratios in Simplest Form
- Questions on Ratios as Decimals
- Questions on Identification and Writing of Equivalent Rates
Answers
1. B – 3:4
2. D – 35
3. D – 18:24
4. A – 1:1
5. D – 9:25
6. C – 10
7. C – 9:18
8. A – 4:3
9. D – 10,000 cm
10. A – 3:4
11. B – 1.5 cups
12. E – 6:10
13. B – 3:4
14. D – 12
15. B – 3:2
16. E – 6:10
17. C – 3
18. C – 2:5
19. A – 1:3
20. A – 6:8
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