Two numbers are in the ratio 12:5 and their sum is 771. Find the numbers. MCQ with Answer and Explanation

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Two numbers are in the ratio 12:5 and their sum is 771. Find the numbers.

A. 1080 and 450

B. 556 and 206

C. 523 and 234

D. 540 and 225

Answer: Option D

Solution (By JKSSB Mock Tests)

Numbers = 12k and 5k. 12k + 5k = 771 ⇒ k = 45. Thus, numbers are 540 and 225.

This question belongs to: Maths Ratio and Proportion

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Practice More Ratio and Proportion Questions

Question #1

If a:b = 8:5 and b:c = 5:4, then a:b:c = ?

A. 16:10:8

B. 7:5:5

C. 8:5:4

D. 8:6:4

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Correct Answer: Option C

Explanation:
Combine ratios: a:b = 8:5, b:c = 5:4 ⇒ a:b:c = 8:5:4.

This question belongs to: Maths Ratio and Proportion

Question #2

If a:b = 5:9 and b:c = 9:7, then a:b:c = ?

A. 5:10:7

B. 5:9:7

C. 10:18:14

D. 4:9:8

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Correct Answer: Option B

Explanation:
Combine ratios: a:b = 5:9, b:c = 9:7 ⇒ a:b:c = 5:9:7.

This question belongs to: Maths Ratio and Proportion

Question #3

If a:b = 3:3 and b:c = 3:12, then a:b:c = ?

A. 3:4:12

B. 6:6:24

C. 2:3:13

D. 3:3:12

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Correct Answer: Option D

Explanation:
Combine ratios: a:b = 3:3, b:c = 3:12 ⇒ a:b:c = 3:3:12.

This question belongs to: Maths Ratio and Proportion

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