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Q: The ratio of present ages of X and Y is 4:5. Which of the following can't be the ratio of ages of X and Y, 20 years ago ?

  • 1
    2 : 5
  • 2
    8 : 15
  • 3
    9 : 10
  • 4
    3 : 5
  • Show Answer
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Answer : 3. "9 : 10"
Explanation :

Answer: C) 9 : 10 Explanation: The ratio of X and Y ages at present is 4:5.  Then, the ratio 20 years ago will not be more than the ratio at present. So, from the options 9:10 is not satifying => its ratio is 0.9 which is greater than presnt ratio of 0.8.

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