If a:b = 6:6 and b:c = 6:7, then a:b:c = ? MCQ with Answer and Explanation

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If a:b = 6:6 and b:c = 6:7, then a:b:c = ?

A. 12:12:14

B. 6:6:7

C. 6:7:7

D. 5:6:8

Answer: Option B

Solution (By JKSSB Mock Tests)

Combine ratios: a:b = 6:6, b:c = 6:7 ⇒ a:b:c = 6:6:7.

This question belongs to: Maths Ratio and Proportion

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Question #1

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Milk and water are in ratio 4:3 in a 173 L mixture. Quantity of milk?

A. 98 L

B. 75 L

C. 196 L

D. 140 L

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Correct Answer: Option A

Explanation:
Total parts = 7. Milk = [4 / (4+3)] × 173 = 98 L.

This question belongs to: Maths Ratio and Proportion

Question #2

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

A. 1:3:11

B. 2:4:10

C. 4:6:20

D. 2:3:10

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Correct Answer: Option D

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

Question #3

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Milk and water are in ratio 4:2 in a 505 L mixture. Quantity of milk?

A. 336 L

B. 672 L

C. 383 L

D. 169 L

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Correct Answer: Option A

Explanation:
Total parts = 6. Milk = [4 / (4+2)] × 505 = 336 L.

This question belongs to: Maths Ratio and Proportion

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