If a:b = 6:8 and b:c = 8:6, then a:b:c = ? MCQ with Answer and Explanation

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If a:b = 6:8 and b:c = 8:6, then a:b:c = ?

A. 6:8:6

B. 12:16:12

C. 6:9:6

D. 5:8:7

Answer: Option A

Solution (By JKSSB Mock Tests)

Combine ratios: a:b = 6:8, b:c = 8:6 ⇒ a:b:c = 6:8:6.

This question belongs to: Maths Ratio and Proportion

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Question #1

If a:b = 8:9 and b:c = 9:8, then a:b:c = ?

A. 8:10:8

B. 7:9:9

C. 8:9:8

D. 16:18:16

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Correct Answer: Option C

Explanation:
Combine ratios: a:b = 8:9, b:c = 9:8 ⇒ a:b:c = 8:9:8.

This question belongs to: Maths Ratio and Proportion

Question #2

Milk and water are in ratio 8:2 in a 156 L mixture. Quantity of milk?

A. 172 L

B. 248 L

C. 124 L

D. 32 L

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Correct Answer: Option C

Explanation:
Total parts = 10. Milk = [8 / (8+2)] × 156 = 124 L.

This question belongs to: Maths Ratio and Proportion

Question #3

If a:b = 2:3 and b:c = 3:10, then a:b:c = ?

A. 2:3:10

B. 1:3:11

C. 2:4:10

D. 4:6:20

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Correct Answer: Option A

Explanation:
Combine ratios: a:b = 2:3, b:c = 3:10 ⇒ a:b:c = 2:3:10.

This question belongs to: Maths Ratio and Proportion

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