If a:b = 7:6 and b:c = 6:5, then a:b:c = ? MCQ with Answer and Explanation

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If a:b = 7:6 and b:c = 6:5, then a:b:c = ?

A. 14:12:10

B. 7:6:5

C. 6:6:6

D. 7:7:5

Answer: Option B

Solution (By JKSSB Mock Tests)

Combine ratios: a:b = 7:6, b:c = 6:5 ⇒ a:b:c = 7:6:5.

This question belongs to: Maths Ratio and Proportion

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Practice More Ratio and Proportion Questions

Question #1

If a:b = 8:8 and b:c = 8:11, then a:b:c = ?

A. 8:8:11

B. 8:9:11

C. 16:16:22

D. 7:8:12

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Correct Answer: Option A

Explanation:
Combine ratios: a:b = 8:8, b:c = 8:11 ⇒ a:b:c = 8:8:11.

This question belongs to: Maths Ratio and Proportion

Question #2

Milk and water are in ratio 5:6 in a 503 L mixture. Quantity of milk?

A. 228 L

B. 275 L

C. 272 L

D. 456 L

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Correct Answer: Option A

Explanation:
Total parts = 11. Milk = [5 / (5+6)] × 503 = 228 L.

This question belongs to: Maths Ratio and Proportion

Question #3

Two numbers are in the ratio 4:10 and their sum is 595. Find the numbers.

A. 336 and 840

B. 158 and 436

C. 184 and 396

D. 168 and 420

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Correct Answer: Option D

Explanation:
Numbers = 4k and 10k. 4k + 10k = 595 ⇒ k = 42. Thus, numbers are 168 and 420.

This question belongs to: Maths Ratio and Proportion

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