SOLUTION: a man is 4 times as old as his son after 16 years he will be only twice old as his son find their present ages.

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Question 529550: a man is 4 times as old as his son after 16 years he will be only twice old as his son find their present ages.
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
f=4s
f+16=2(s+16)
f+16=2s+32
f=2s+16
4s=2s+16
2s=16
s=8
f=32
check
32+16=2*(8+16)
48=2*24
48=48
ok