SOLUTION: Devin is 6 years younger than his sister Kate. Melanie is twice as old as Devin. How old are all three siblings?

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Question 1151525: Devin is 6 years younger than his sister Kate. Melanie is twice as old as
Devin. How old are all three siblings?
Answer by ikleyn(52794) About Me  (Show Source):
You can put this solution on YOUR website!
.

Many valid answers are possible . . .   See the table below


    Devin    Kate    Melanie

      1        7        2

      2        8        4

      3        9        6

 . . . . . . . . . . . . . . . 


And even more possibilities do exist.


In order for the problem has a UNIQUE solution, more info should be given.


The info provided in the post, is not enough to produce a unique solution.