If a:b = 8:3 and b:c = 3:8, then a:b:c = ? MCQ with Answer and Explanation

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If a:b = 8:3 and b:c = 3:8, then a:b:c = ?

A. 7:3:9

B. 8:4:8

C. 8:3:8

D. 16:6:16

Answer: Option C

Solution (By JKSSB Mock Tests)

Combine ratios: a:b = 8:3, b:c = 3:8 ⇒ a:b:c = 8:3:8.

This question belongs to: Maths Ratio and Proportion

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Question #1

If a:b = 3:3 and b:c = 3:12, then a:b:c = ?

A. 3:3:12

B. 3:4:12

C. 6:6:24

D. 2:3:13

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Correct Answer: Option A

Explanation:
Combine ratios: a:b = 3:3, b:c = 3:12 ⇒ a:b:c = 3:3:12.

This question belongs to: Maths Ratio and Proportion

Question #2

Two numbers are in ratio 5:12. Their difference is 93. What is their sum?

A. 313

B. 255

C. 127

D. 404

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Correct Answer: Option B

Explanation:
Numbers 5k, 12k. Difference |5-12|k = 93 ⇒ k = 13. Sum = (5+12)k ≈ 255.

This question belongs to: Maths Ratio and Proportion

Question #3

Milk and water are in ratio 6:5 in a 226 L mixture. Quantity of milk?

A. 103 L

B. 153 L

C. 246 L

D. 123 L

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Correct Answer: Option D

Explanation:
Total parts = 11. Milk = [6 / (6+5)] × 226 = 123 L.

This question belongs to: Maths Ratio and Proportion

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