SOLUTION: Alan is 5 years older than Bob. Bob is twice as old as Cindy. All their ages add up to 20. What are their ages?

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Question 1119091: Alan is 5 years older than Bob.
Bob is twice as old as Cindy.
All their ages add up to 20.
What are their ages?
Found 2 solutions by josgarithmetic, Shin123:
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
PERSON     AGE
Alan       2x+5
Bob        2x
Cindy      x
SUM       20

Form the sum equation and solve...

Answer by Shin123(626) About Me  (Show Source):
You can put this solution on YOUR website!
P         A
Alan   2x+5
Bob     2x
Cindy   x
Sum   20

2x%2B5%2B2x%2Bx=20
5x%2B5=20
5x=15
highlight%28x=3%29 3*2=6 highlight%28Bob=6%29 6+5=11 highlight%28Alan=11%29