Aptitude - Permutations and Combinations - Discussion

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Q.

The total of the ages of X, Y and Z is 65 years.Three years ago, the ratio of their ages was 3 : 5 : 6.What is the difference between the present ages of X and Z ?                         
A. 15 years B. 12 years
C. 27 years D. 18 years

Answer: Option B
Explaination:

 


No explanation




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