SOLUTION: John is 1/4 as old as his son.In 8 years' time,the sum of their ages will be 61. How old is John's father?

Question 821535: John is 1/4 as old as his son.In 8 years' time,the sum of their ages will be 61. How old is John's father?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
John is 1/4 as old as his son.In 8 years' time,the sum of their ages will be 61. How old is John's father?
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Note: I don't know how john can be younger than his son.
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Equations:
j = (1/4)s
j+8 + s+8 = 61
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Note: s = 4j
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Substitute for "s" and solve for "j":
j+8 + 4j+8 = 61
5j + 16 = 61
5j = 45
john = 9 years
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Solve for "s":
s = 4j
son = 4*9 = 36 years
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Pls. check the wording of your problem.
John cannot be younger than his son.
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Cheers,
Stan H.

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