Find the mean proportional between 22 and 16. MCQ with Answer and Explanation
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Question #1
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Find the mean proportional between 18 and 55.
Correct Answer: Option D
Explanation:
Mean proportional = √(18 × 55) = √(990) = 31.
Mean proportional = √(18 × 55) = √(990) = 31.
This question belongs to:
Maths
Ratio and Proportion
Question #2
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If a:b = 3:7 and b:c = 7:9, then a:b:c = ?
Correct Answer: Option A
Explanation:
Combine ratios: a:b = 3:7, b:c = 7:9 ⇒ a:b:c = 3:7:9.
Combine ratios: a:b = 3:7, b:c = 7:9 ⇒ a:b:c = 3:7:9.
This question belongs to:
Maths
Ratio and Proportion
Question #3
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If a:b = 4:6 and b:c = 6:12, then a:b:c = ?
Correct Answer: Option D
Explanation:
Combine ratios: a:b = 4:6, b:c = 6:12 ⇒ a:b:c = 4:6:12.
Combine ratios: a:b = 4:6, b:c = 6:12 ⇒ a:b:c = 4:6:12.
This question belongs to:
Maths
Ratio and Proportion
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