Ratio of present ages of A and B is 4:8. After 6 years, the ratio becomes 7:11. Present age of A is? MCQ with Answer and Explanation
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Question #1
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Two numbers are in ratio 11:4. Their difference is 116. What is their sum?
Correct Answer: Option C
Explanation:
Numbers 11k, 4k. Difference |11-4|k = 116 ⇒ k = 16. Sum = (11+4)k ≈ 585.
Numbers 11k, 4k. Difference |11-4|k = 116 ⇒ k = 16. Sum = (11+4)k ≈ 585.
This question belongs to:
Maths
Ratio and Proportion
Question #2
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If a:b = 3:10 and b:c = 10:11, then a:b:c = ?
Correct Answer: Option D
Explanation:
Combine ratios: a:b = 3:10, b:c = 10:11 ⇒ a:b:c = 3:10:11.
Combine ratios: a:b = 3:10, b:c = 10:11 ⇒ a:b:c = 3:10:11.
This question belongs to:
Maths
Ratio and Proportion
Question #3
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If a:b = 5:5 and b:c = 5:8, then a:b:c = ?
Correct Answer: Option A
Explanation:
Combine ratios: a:b = 5:5, b:c = 5:8 ⇒ a:b:c = 5:5:8.
Combine ratios: a:b = 5:5, b:c = 5:8 ⇒ a:b:c = 5:5:8.
This question belongs to:
Maths
Ratio and Proportion
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