If the ratio of the ages of A and B is 2:5 at present, and fifteen years from now, the ratio will get changed to 7:13, then find A's present age.

If the ratio of the ages of A and B is 2:5 at present, and fifteen years from now, the ratio will get changed to 7:13, then find A's present age.

• A. 20 years
  
• B. 30 years
  
• C. 15 years
  
• D. 25 years
  

 

The correct answer is option A. 20 years. Can you explain this answer in the comments?

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