Milk and water are in ratio 8:6 in a 248 L mixture. Quantity of milk? MCQ with Answer and Explanation
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Question #1
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Find the mean proportional between 17 and 42.
Correct Answer: Option C
Explanation:
Mean proportional = √(17 × 42) = √(714) = 26.
Mean proportional = √(17 × 42) = √(714) = 26.
This question belongs to:
Maths
Ratio and Proportion
Question #2
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Two numbers are in the ratio 3:4 and their sum is 120. Find the numbers.
Correct Answer: Option B
Explanation:
Numbers = 3k and 4k. 3k + 4k = 120 ⇒ k = 17. Thus, numbers are 51 and 68.
Numbers = 3k and 4k. 3k + 4k = 120 ⇒ k = 17. Thus, numbers are 51 and 68.
This question belongs to:
Maths
Ratio and Proportion
Question #3
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If a:b = 7:9 and b:c = 9:8, then a:b:c = ?
Correct Answer: Option D
Explanation:
Combine ratios: a:b = 7:9, b:c = 9:8 ⇒ a:b:c = 7:9:8.
Combine ratios: a:b = 7:9, b:c = 9:8 ⇒ a:b:c = 7:9:8.
This question belongs to:
Maths
Ratio and Proportion
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