If a:b = 3:3 and b:c = 3:6, then a:b:c = ? MCQ with Answer and Explanation

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If a:b = 3:3 and b:c = 3:6, then a:b:c = ?

A. 3:4:6

B. 6:6:12

C. 2:3:7

D. 3:3:6

Answer: Option D

Solution (By JKSSB Mock Tests)

Combine ratios: a:b = 3:3, b:c = 3:6 ⇒ a:b:c = 3:3:6.

This question belongs to: Maths Ratio and Proportion

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Question #1

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Two numbers are in ratio 7:12. Their difference is 121. What is their sum?

A. 326

B. 190

C. 95

D. 218

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Correct Answer: Option B

Explanation:
Numbers 7k, 12k. Difference |7-12|k = 121 ⇒ k = 24. Sum = (7+12)k ≈ 190.

This question belongs to: Maths Ratio and Proportion

Question #2

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If a:b = 6:10 and b:c = 10:6, then a:b:c = ?

A. 12:20:12

B. 6:11:6

C. 6:10:6

D. 5:10:7

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Correct Answer: Option C

Explanation:
Combine ratios: a:b = 6:10, b:c = 10:6 ⇒ a:b:c = 6:10:6.

This question belongs to: Maths Ratio and Proportion

Question #3

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If a:b = 2:8 and b:c = 8:4, then a:b:c = ?

A. 2:9:4

B. 2:8:4

C. 4:16:8

D. 1:8:5

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Correct Answer: Option B

Explanation:
Combine ratios: a:b = 2:8, b:c = 8:4 ⇒ a:b:c = 2:8:4.

This question belongs to: Maths Ratio and Proportion

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