RATIO AND PROPORTION
1. 1: 3 = 1 2/3: x. The value of x is?
A. 1 B. 3 C. 4 1/6 D. 5
2. What number has a 5:1 ratio to the number 10?
A. 42 B. 50 C. 55 D. 62
3. If a: b = 7: 5, b: c = 9: 11, find a: b: c?
A. 63: 14: 55 B. 63: 45: 55 C. 14: 14: 15 D. 7: 14: 15
4. If a: b = 3:4, b:c = 7:9, c:d = 5:7, find a:d?
A. 5:12 B. 7:12 C. 3:11 D. 5:11
5. The inverse ratio of 3: 2: 1 is?
A. 1:2:3 B. 2:3:1 C. 3:1:2 D. 2:3:6
6. The duplicate ratio of 3:4 is?
A. 4:3 B. 6:8 C. 9:16 D. 3:4
7. The triplicate ratio of 1:2 is?
A. 8:1 B. 1:8 C. 2:1 D. 1:2
8. The sub-duplicate ratio of 1:4 is
A. 1:2 B. 2:1 C. 1:4 D. 1:3
9. The greatest ratio out of 2:3, 5:4, 3:2 and 4:5 is?
A. 4:5 B. 3:2 C. 5:4 D. 2:3
10. The smallest ratio out of 1:1, 2:1, 1:3 and 3:1 is?
A. 3:1 B. 1:3 C. 2:1 D. 1:2
Answer Keys:
1.D
2.C
3.B
4.A
5.B
6.D
7.B
8.A
9.B
10.B
A. 1 B. 3 C. 4 1/6 D. 5
2. What number has a 5:1 ratio to the number 10?
A. 42 B. 50 C. 55 D. 62
3. If a: b = 7: 5, b: c = 9: 11, find a: b: c?
A. 63: 14: 55 B. 63: 45: 55 C. 14: 14: 15 D. 7: 14: 15
4. If a: b = 3:4, b:c = 7:9, c:d = 5:7, find a:d?
A. 5:12 B. 7:12 C. 3:11 D. 5:11
5. The inverse ratio of 3: 2: 1 is?
A. 1:2:3 B. 2:3:1 C. 3:1:2 D. 2:3:6
6. The duplicate ratio of 3:4 is?
A. 4:3 B. 6:8 C. 9:16 D. 3:4
7. The triplicate ratio of 1:2 is?
A. 8:1 B. 1:8 C. 2:1 D. 1:2
8. The sub-duplicate ratio of 1:4 is
A. 1:2 B. 2:1 C. 1:4 D. 1:3
9. The greatest ratio out of 2:3, 5:4, 3:2 and 4:5 is?
A. 4:5 B. 3:2 C. 5:4 D. 2:3
10. The smallest ratio out of 1:1, 2:1, 1:3 and 3:1 is?
A. 3:1 B. 1:3 C. 2:1 D. 1:2
Answer Keys:
1.D
2.C
3.B
4.A
5.B
6.D
7.B
8.A
9.B
10.B
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