If a:b = 8:4 and b:c = 4:4, then a:b:c = ? MCQ with Answer and Explanation

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

A. 16:8:8

B. 8:5:4

C. 8:4:4

D. 7:4:5

Answer: Option C

Solution (By JKSSB Mock Tests)

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

This question belongs to: Maths Ratio and Proportion

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Question #1

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Two numbers are in ratio 7:4. Their difference is 73. What is their sum?

A. 734

B. 297

C. 636

D. 594

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Correct Answer: Option D

Explanation:
Numbers 7k, 4k. Difference |7-4|k = 73 ⇒ k = 24. Sum = (7+4)k ≈ 594.

This question belongs to: Maths Ratio and Proportion

Question #2

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Find the mean proportional between 10 and 48.

A. 42

B. 21

C. 58

D. 24

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Correct Answer: Option B

Explanation:
Mean proportional = √(10 × 48) = √(480) = 21.

This question belongs to: Maths Ratio and Proportion

Question #3

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Milk and water are in ratio 8:6 in a 248 L mixture. Quantity of milk?

A. 175 L

B. 282 L

C. 107 L

D. 141 L

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Correct Answer: Option D

Explanation:
Total parts = 14. Milk = [8 / (8+6)] × 248 = 141 L.

This question belongs to: Maths Ratio and Proportion

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