Two numbers are in the ratio 5:9 and their sum is 612. Find the numbers. MCQ with Answer and Explanation
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Question #1
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Find the mean proportional between 28 and 14.
Correct Answer: Option B
Explanation:
Mean proportional = √(28 × 14) = √(392) = 19.
Mean proportional = √(28 × 14) = √(392) = 19.
This question belongs to:
Maths
Ratio and Proportion
Question #2
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If a:b = 4:3 and b:c = 3:12, then a:b:c = ?
Correct Answer: Option B
Explanation:
Combine ratios: a:b = 4:3, b:c = 3:12 ⇒ a:b:c = 4:3:12.
Combine ratios: a:b = 4:3, b:c = 3:12 ⇒ a:b:c = 4:3:12.
This question belongs to:
Maths
Ratio and Proportion
Question #3
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Milk and water are in ratio 8:2 in a 156 L mixture. Quantity of milk?
Correct Answer: Option D
Explanation:
Total parts = 10. Milk = [8 / (8+2)] × 156 = 124 L.
Total parts = 10. Milk = [8 / (8+2)] × 156 = 124 L.
This question belongs to:
Maths
Ratio and Proportion
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