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Ratio And Proportion Quiz 18 (10 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. If a:b=7:5 and b:c=9:11.Find a:b:c.

Correct Answer: B) 63:45:55.

2. George has 45 toy cars. This is 5 times as many toy cars as Martha has. How many toy cars does Martha have? Which equation represents how to find the value of n?

Correct Answer: B) 5 x n = 45.

3. Solve for the unknown in the equivalent ratios.3/4 = 9/?

Correct Answer: D) 12.

4. If a: b = 4: 5, a: d = 2: 3 and d: c = 4: 3, find a: b: c: d.

Correct Answer: D) 8: 10: 9: 12.

5. Find the third proportional to:4.5 and 6

Correct Answer: C) 8.

6. Daniel got thrice as many marks in English as in Science. His total marks in English, Science and Maths are 162. If the ratio of his marks in English and Maths is 3: 5, find his marks in Science?

Correct Answer: A) 18.

7. Find the mean proportional between 6 and 24

Correct Answer: C) 12.

8. Two numbers are in the ratio 5: 9. On subtracting 3 from each, the ratio becomes 1: 2. Find the larger number.

Correct Answer: D) 27.

9. Find the missing number:2: 3 = x: 9

Correct Answer: B) 6.

10. Find the mean proportional between 9 and 81?

Correct Answer: A) 27.

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