Two numbers are in ratio 9:5. Their difference is 105. What is their sum? MCQ with Answer and Explanation

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

A. 574

B. 684

C. 633

D. 287

Answer: Option A

Solution (By JKSSB Mock Tests)

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

This question belongs to: Maths Ratio and Proportion

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Practice More Ratio and Proportion Questions

Question #1

If a:b = 4:6 and b:c = 6:12, then a:b:c = ?

A. 3:6:13

B. 4:7:12

C. 4:6:12

D. 8:12:24

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Correct Answer: Option C

Explanation:
Combine ratios: a:b = 4:6, b:c = 6:12 ⇒ a:b:c = 4:6:12.

This question belongs to: Maths Ratio and Proportion

Question #2

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

A. 7:8:4

B. 7:7:4

C. 6:7:5

D. 14:14:8

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Correct Answer: Option B

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

This question belongs to: Maths Ratio and Proportion

Question #3

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

A. 6:11:6

B. 12:20:12

C. 5:10:7

D. 6:10:6

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Correct Answer: Option D

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

This question belongs to: Maths Ratio and Proportion

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