Two numbers are in ratio 7:12. Their difference is 121. What is their sum? MCQ with Answer and Explanation

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Two numbers are in ratio 7:12. Their difference is 121. What is their sum?

A. 326

B. 190

C. 95

D. 218

Answer: Option B

Solution (By JKExamLibrary)

Numbers 7k, 12k. Difference |7-12|k = 121 ⇒ k = 24. Sum = (7+12)k ≈ 190.

This question belongs to: Maths Ratio and Proportion

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Practice More Ratio and Proportion Questions

Question #1 Report Error

Milk and water are in ratio 8:2 in a 156 L mixture. Quantity of milk?

A. 248 L

B. 32 L

C. 172 L

D. 124 L

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Correct Answer: Option D

Explanation:
Total parts = 10. Milk = [8 / (8+2)] × 156 = 124 L.

This question belongs to: Maths Ratio and Proportion

Question #2 Report Error

Find the mean proportional between 11 and 61.

A. 25

B. 28

C. 50

D. 72

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Correct Answer: Option A

Explanation:
Mean proportional = √(11 × 61) = √(671) = 25.

This question belongs to: Maths Ratio and Proportion

Question #3 Report Error

Find the mean proportional between 24 and 32.

A. 27

B. 30

C. 54

D. 56

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Correct Answer: Option A

Explanation:
Mean proportional = √(24 × 32) = √(768) = 27.

This question belongs to: Maths Ratio and Proportion

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