If a:b = 4:10 and b:c = 10:6, then a:b:c = ? MCQ with Answer and Explanation

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If a:b = 4:10 and b:c = 10:6, then a:b:c = ?

A. 4:10:6

B. 8:20:12

C. 4:11:6

D. 3:10:7

Answer: Option A

Solution (By JKSSB Mock Tests)

Combine ratios: a:b = 4:10, b:c = 10:6 ⇒ a:b:c = 4:10:6.

This question belongs to: Maths Ratio and Proportion

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Question #1

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Two numbers are in ratio 9:5. Their difference is 105. What is their sum?

A. 684

B. 574

C. 287

D. 633

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Correct Answer: Option B

Explanation:
Numbers 9k, 5k. Difference |9-5|k = 105 ⇒ k = 26. Sum = (9+5)k ≈ 574.

This question belongs to: Maths Ratio and Proportion

Question #2

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Milk and water are in ratio 6:2 in a 401 L mixture. Quantity of milk?

A. 345 L

B. 101 L

C. 600 L

D. 300 L

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Correct Answer: Option D

Explanation:
Total parts = 8. Milk = [6 / (6+2)] × 401 = 300 L.

This question belongs to: Maths Ratio and Proportion

Question #3

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Two numbers are in the ratio 8:14 and their sum is 276. Find the numbers.

A. 96 and 168

B. 192 and 336

C. 125 and 139

D. 84 and 185

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Correct Answer: Option A

Explanation:
Numbers = 8k and 14k. 8k + 14k = 276 ⇒ k = 12. Thus, numbers are 96 and 168.

This question belongs to: Maths Ratio and Proportion

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