SOLUTION: Adam is twice as old as Barry, Charlie is three years younger than Barry. The sum of their ages is 53, how old are they.

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Question 1022947: Adam is twice as old as Barry, Charlie is three years younger than Barry. The sum of their ages is 53, how old are they.
Answer by addingup(3677) About Me  (Show Source):
You can put this solution on YOUR website!
A = 2B
C = B-3
We will use these values for A and C in the next equation:
A+B+C = 53
2B+B-3+B = 53 add B on left and add 3 on both sides
4B = 56 divide both sides by 4
B = 14 And the problem says:
A = 2B = 2*14 = 28
C = B-3 = 14-3 = 11
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Check:
14+28+11 = 53 Correct.
J