Two numbers are in the ratio 15:12 and their sum is 319. Find the numbers. MCQ with Answer and Explanation

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Two numbers are in the ratio 15:12 and their sum is 319. Find the numbers.

A. 147 and 149

B. 184 and 102

C. 165 and 132

D. 330 and 264

Answer: Option C

Solution (By JKSSB Mock Tests)

Numbers = 15k and 12k. 15k + 12k = 319 ⇒ k = 11. Thus, numbers are 165 and 132.

This question belongs to: Maths Ratio and Proportion

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Practice More Ratio and Proportion Questions

Question #1

If a:b = 4:4 and b:c = 4:9, then a:b:c = ?

A. 4:4:9

B. 3:4:10

C. 4:5:9

D. 8:8:18

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Correct Answer: Option A

Explanation:
Combine ratios: a:b = 4:4, b:c = 4:9 ⇒ a:b:c = 4:4:9.

This question belongs to: Maths Ratio and Proportion

Question #2

Find the mean proportional between 18 and 55.

A. 62

B. 73

C. 34

D. 31

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Correct Answer: Option D

Explanation:
Mean proportional = √(18 × 55) = √(990) = 31.

This question belongs to: Maths Ratio and Proportion

Question #3

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

A. 4:8:6

B. 5:8:5

C. 10:16:10

D. 5:9:5

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Correct Answer: Option B

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

This question belongs to: Maths Ratio and Proportion

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