Two numbers are in the ratio 7:8 and their sum is 322. Find the numbers. MCQ with Answer and Explanation
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Question #1
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If a:b = 6:5 and b:c = 5:6, then a:b:c = ?
Correct Answer: Option D
Explanation:
Combine ratios: a:b = 6:5, b:c = 5:6 ⇒ a:b:c = 6:5:6.
Combine ratios: a:b = 6:5, b:c = 5:6 ⇒ a:b:c = 6:5:6.
This question belongs to:
Maths
Ratio and Proportion
Question #2
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Two numbers are in ratio 9:12. Their difference is 74. What is their sum?
Correct Answer: Option D
Explanation:
Numbers 9k, 12k. Difference |9-12|k = 74 ⇒ k = 24. Sum = (9+12)k ≈ 210.
Numbers 9k, 12k. Difference |9-12|k = 74 ⇒ k = 24. Sum = (9+12)k ≈ 210.
This question belongs to:
Maths
Ratio and Proportion
Question #3
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Two numbers are in the ratio 5:9 and their sum is 612. Find the numbers.
Correct Answer: Option A
Explanation:
Numbers = 5k and 9k. 5k + 9k = 612 ⇒ k = 43. Thus, numbers are 215 and 387.
Numbers = 5k and 9k. 5k + 9k = 612 ⇒ k = 43. Thus, numbers are 215 and 387.
This question belongs to:
Maths
Ratio and Proportion
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