Two numbers are in the ratio 5:3 and their sum is 590. Find the numbers. MCQ with Answer and Explanation
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Question #1
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If a:b = 3:5 and b:c = 5:5, then a:b:c = ?
Correct Answer: Option A
Explanation:
Combine ratios: a:b = 3:5, b:c = 5:5 ⇒ a:b:c = 3:5:5.
Combine ratios: a:b = 3:5, b:c = 5:5 ⇒ a:b:c = 3:5:5.
This question belongs to:
Maths
Ratio and Proportion
Question #2
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Find the mean proportional between 4 and 45.
Correct Answer: Option A
Explanation:
Mean proportional = √(4 × 45) = √(180) = 13.
Mean proportional = √(4 × 45) = √(180) = 13.
This question belongs to:
Maths
Ratio and Proportion
Question #3
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If a:b = 7:7 and b:c = 7:9, then a:b:c = ?
Correct Answer: Option C
Explanation:
Combine ratios: a:b = 7:7, b:c = 7:9 ⇒ a:b:c = 7:7:9.
Combine ratios: a:b = 7:7, b:c = 7:9 ⇒ a:b:c = 7:7:9.
This question belongs to:
Maths
Ratio and Proportion
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