Question 890819: a man is 10 times as old as his daughter in 5 years time he will be 5 times as old as his daughter. How old are each of them now Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! a man is 10 times as old as his daughter in 5 years time he will be 5 times as old as his daughter. How old are each of them now
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f = 10d
f+5 = 5(d+5) = 5d+25
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Sub for f
10d+5 = 5d+25
5d = 20
d = 4 (daughter's age)
f = 40 (father's age)