Two numbers are in the ratio 12:10 and their sum is 753. Find the numbers. MCQ with Answer and Explanation

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Two numbers are in the ratio 12:10 and their sum is 753. Find the numbers.

A. 396 and 345

B. 816 and 680

C. 408 and 340

D. 429 and 320

Answer: Option C

Solution (By JKSSB Mock Tests)

Numbers = 12k and 10k. 12k + 10k = 753 ⇒ k = 34. Thus, numbers are 408 and 340.

This question belongs to: Maths Ratio and Proportion

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Practice More Ratio and Proportion Questions

Question #1

If a:b = 4:3 and b:c = 3:12, then a:b:c = ?

A. 4:3:12

B. 4:4:12

C. 8:6:24

D. 3:3:13

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Correct Answer: Option A

Explanation:
Combine ratios: a:b = 4:3, b:c = 3:12 ⇒ a:b:c = 4:3:12.

This question belongs to: Maths Ratio and Proportion

Question #2

If a:b = 3:5 and b:c = 5:9, then a:b:c = ?

A. 6:10:18

B. 2:5:10

C. 3:5:9

D. 3:6:9

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Correct Answer: Option C

Explanation:
Combine ratios: a:b = 3:5, b:c = 5:9 ⇒ a:b:c = 3:5:9.

This question belongs to: Maths Ratio and Proportion

Question #3

If a:b = 2:6 and b:c = 6:10, then a:b:c = ?

A. 2:6:10

B. 1:6:11

C. 2:7:10

D. 4:12:20

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Correct Answer: Option A

Explanation:
Combine ratios: a:b = 2:6, b:c = 6:10 ⇒ a:b:c = 2:6:10.

This question belongs to: Maths Ratio and Proportion

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