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

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

A. 3:10:11

B. 4:11:10

C. 8:20:20

D. 4:10:10

Answer: Option D

Solution (By JKSSB Mock Tests)

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

This question belongs to: Maths Ratio and Proportion

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Question #1

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Two numbers are in ratio 6:4. Their difference is 103. What is their sum?

A. 250

B. 558

C. 500

D. 617

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Correct Answer: Option C

Explanation:
Numbers 6k, 4k. Difference |6-4|k = 103 ⇒ k = 51. Sum = (6+4)k ≈ 500.

This question belongs to: Maths Ratio and Proportion

Question #2

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Milk and water are in ratio 8:3 in a 249 L mixture. Quantity of milk?

A. 181 L

B. 68 L

C. 362 L

D. 210 L

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Correct Answer: Option A

Explanation:
Total parts = 11. Milk = [8 / (8+3)] × 249 = 181 L.

This question belongs to: Maths Ratio and Proportion

Question #3

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If a:b = 7:4 and b:c = 4:4, then a:b:c = ?

A. 6:4:5

B. 7:4:4

C. 7:5:4

D. 14:8:8

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Correct Answer: Option B

Explanation:
Combine ratios: a:b = 7:4, b:c = 4:4 ⇒ a:b:c = 7:4:4.

This question belongs to: Maths Ratio and Proportion

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