SOLUTION: Kumar is three times as old as his sister. Three years from now, he will be twice as old as his sister.Find their present ages.

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Question 959545: Kumar is three times as old as his sister. Three years from now, he will be twice as old as his sister.Find their present ages.
Answer by satyareddy22(84) About Me  (Show Source):
You can put this solution on YOUR website!
kumar=k,sister=s
k=3s,
k+3=2(s+3)
3s+3=2(s+3)=2s+6
3s-2s=6-3
s=3yrs
k=3s=3*3=9yrs