Ratio of present ages of A and B is 5:5. After 5 years, the ratio becomes 6:7. Present age of A is? MCQ with Answer and Explanation
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Question #1
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If a:b = 2:6 and b:c = 6:11, then a:b:c = ?
Correct Answer: Option B
Explanation:
Combine ratios: a:b = 2:6, b:c = 6:11 ⇒ a:b:c = 2:6:11.
Combine ratios: a:b = 2:6, b:c = 6:11 ⇒ a:b:c = 2:6:11.
This question belongs to:
Maths
Ratio and Proportion
Question #2
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Two numbers are in the ratio 13:11 and their sum is 287. Find the numbers.
Correct Answer: Option B
Explanation:
Numbers = 13k and 11k. 13k + 11k = 287 ⇒ k = 11. Thus, numbers are 143 and 121.
Numbers = 13k and 11k. 13k + 11k = 287 ⇒ k = 11. Thus, numbers are 143 and 121.
This question belongs to:
Maths
Ratio and Proportion
Question #3
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Two numbers are in the ratio 10:5 and their sum is 127. Find the numbers.
Correct Answer: Option D
Explanation:
Numbers = 10k and 5k. 10k + 5k = 127 ⇒ k = 8. Thus, numbers are 80 and 40.
Numbers = 10k and 5k. 10k + 5k = 127 ⇒ k = 8. Thus, numbers are 80 and 40.
This question belongs to:
Maths
Ratio and Proportion
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