Two numbers are in ratio 9:5. Their difference is 105. What is their sum? MCQ with Answer and Explanation
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Question #1
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If a:b = 3:6 and b:c = 6:9, then a:b:c = ?
Correct Answer: Option D
Explanation:
Combine ratios: a:b = 3:6, b:c = 6:9 ⇒ a:b:c = 3:6:9.
Combine ratios: a:b = 3:6, b:c = 6:9 ⇒ a:b:c = 3:6:9.
This question belongs to:
Maths
Ratio and Proportion
Question #2
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Find the mean proportional between 29 and 50.
Correct Answer: Option B
Explanation:
Mean proportional = √(29 × 50) = √(1450) = 38.
Mean proportional = √(29 × 50) = √(1450) = 38.
This question belongs to:
Maths
Ratio and Proportion
Question #3
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If a:b = 7:6 and b:c = 6:4, then a:b:c = ?
Correct Answer: Option C
Explanation:
Combine ratios: a:b = 7:6, b:c = 6:4 ⇒ a:b:c = 7:6:4.
Combine ratios: a:b = 7:6, b:c = 6:4 ⇒ a:b:c = 7:6:4.
This question belongs to:
Maths
Ratio and Proportion
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