If a:b = 4:3 and b:c = 3:10, then a:b:c = ? MCQ with Answer and Explanation

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If a:b = 4:3 and b:c = 3:10, then a:b:c = ?

A. 4:3:10

B. 8:6:20

C. 3:3:11

D. 4:4:10

Answer: Option A

Solution (By JKSSB Mock Tests)

Combine ratios: a:b = 4:3, b:c = 3:10 ⇒ a:b:c = 4:3:10.

This question belongs to: Maths Ratio and Proportion

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Question #1

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Milk and water are in ratio 9:7 in a 533 L mixture. Quantity of milk?

A. 598 L

B. 299 L

C. 336 L

D. 234 L

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Correct Answer: Option B

Explanation:
Total parts = 16. Milk = [9 / (9+7)] × 533 = 299 L.

This question belongs to: Maths Ratio and Proportion

Question #2

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If a:b = 5:10 and b:c = 10:4, then a:b:c = ?

A. 5:11:4

B. 10:20:8

C. 4:10:5

D. 5:10:4

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Correct Answer: Option D

Explanation:
Combine ratios: a:b = 5:10, b:c = 10:4 ⇒ a:b:c = 5:10:4.

This question belongs to: Maths Ratio and Proportion

Question #3

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If a:b = 6:9 and b:c = 9:6, then a:b:c = ?

A. 12:18:12

B. 6:10:6

C. 6:9:6

D. 5:9:7

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Correct Answer: Option C

Explanation:
Combine ratios: a:b = 6:9, b:c = 9:6 ⇒ a:b:c = 6:9:6.

This question belongs to: Maths Ratio and Proportion

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