Two numbers are in ratio 4:12. Their difference is 122. What is their sum? MCQ with Answer and Explanation
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Question #1
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If a:b = 2:6 and b:c = 6:11, then a:b:c = ?
Correct Answer: Option C
Explanation:
Combine ratios: a:b = 2:6, b:c = 6:11 ⇒ a:b:c = 2:6:11.
Combine ratios: a:b = 2:6, b:c = 6:11 ⇒ a:b:c = 2:6:11.
This question belongs to:
Maths
Ratio and Proportion
Question #2
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Two numbers are in ratio 12:10. Their difference is 74. What is their sum?
Correct Answer: Option C
Explanation:
Numbers 12k, 10k. Difference |12-10|k = 74 ⇒ k = 37. Sum = (12+10)k ≈ 264.
Numbers 12k, 10k. Difference |12-10|k = 74 ⇒ k = 37. Sum = (12+10)k ≈ 264.
This question belongs to:
Maths
Ratio and Proportion
Question #3
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Find the mean proportional between 32 and 50.
Correct Answer: Option C
Explanation:
Mean proportional = √(32 × 50) = √(1600) = 40.
Mean proportional = √(32 × 50) = √(1600) = 40.
This question belongs to:
Maths
Ratio and Proportion
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