SOLUTION: Barry�s present age is 4 times his sons age. In 5 years time Barry�s age will be 3 times his sons age. What is his sons present age? Thank you very much!

Question 1109910: Barry�s present age is 4 times his sons age. In 5 years time Barry�s age will be 3 times his sons age. What is his sons present age?
Thank you very much!
Answer by rothauserc(4718) (Show Source): You can put this solution on YOUR website!
let x be Barry's son's age
:
4x +5 = 3 * (x+5)
:
4x +5 = 3x +15
:
x = 10
:
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Barry's son's age is 10
:
check the answer
:
if Barry's son is 10 years old, then Barry is 4 * 10 = 40
:
40 +5 = 3 * (10+5)
:
45 = 45
:
the answer checks
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