Two numbers are in the ratio 15:6 and their sum is 521. Find the numbers. MCQ with Answer and Explanation

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Two numbers are in the ratio 15:6 and their sum is 521. Find the numbers.

A. 360 and 144

B. 375 and 127

C. 720 and 288

D. 347 and 158

Answer: Option A

Solution (By JKExamLibrary)

Numbers = 15k and 6k. 15k + 6k = 521 ⇒ k = 24. Thus, numbers are 360 and 144.

This question belongs to: Maths Ratio and Proportion

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Practice More Ratio and Proportion Questions

Question #1 Report Error

Two numbers are in the ratio 15:9 and their sum is 542. Find the numbers.

A. 342 and 171

B. 330 and 198

C. 660 and 396

D. 320 and 205

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Correct Answer: Option B

Explanation:
Numbers = 15k and 9k. 15k + 9k = 542 ⇒ k = 22. Thus, numbers are 330 and 198.

This question belongs to: Maths Ratio and Proportion

Question #2 Report Error

If a:b = 4:3 and b:c = 3:10, then a:b:c = ?

A. 8:6:20

B. 3:3:11

C. 4:3:10

D. 4:4:10

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Correct Answer: Option C

Explanation:
Combine ratios: a:b = 4:3, b:c = 3:10 ⇒ a:b:c = 4:3:10.

This question belongs to: Maths Ratio and Proportion

Question #3 Report Error

Two numbers are in the ratio 12:8 and their sum is 523. Find the numbers.

A. 333 and 191

B. 312 and 208

C. 624 and 416

D. 294 and 220

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Correct Answer: Option B

Explanation:
Numbers = 12k and 8k. 12k + 8k = 523 ⇒ k = 26. Thus, numbers are 312 and 208.

This question belongs to: Maths Ratio and Proportion

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