If a:b = 4:5 and b:c = 5:4, then a:b:c = ? MCQ with Answer and Explanation
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Question #1
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If a:b = 2:7 and b:c = 7:9, then a:b:c = ?
Correct Answer: Option B
Explanation:
Combine ratios: a:b = 2:7, b:c = 7:9 ⇒ a:b:c = 2:7:9.
Combine ratios: a:b = 2:7, b:c = 7:9 ⇒ a:b:c = 2:7:9.
This question belongs to:
Maths
Ratio and Proportion
Question #2
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Find the mean proportional between 22 and 51.
Correct Answer: Option B
Explanation:
Mean proportional = √(22 × 51) = √(1122) = 33.
Mean proportional = √(22 × 51) = √(1122) = 33.
This question belongs to:
Maths
Ratio and Proportion
Question #3
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If a:b = 4:3 and b:c = 3:10, then a:b:c = ?
Correct Answer: Option C
Explanation:
Combine ratios: a:b = 4:3, b:c = 3:10 ⇒ a:b:c = 4:3:10.
Combine ratios: a:b = 4:3, b:c = 3:10 ⇒ a:b:c = 4:3:10.
This question belongs to:
Maths
Ratio and Proportion
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