Question 870728: Remain is seven times as old as his son. 10 years hence he will be three times as old as his son. What are their present ages in years? Found 2 solutions by ewatrrr, josmiceli:Answer by ewatrrr(24785) (Show Source):
You can put this solution on YOUR website! Let x represent the son's age and 7x the father's age NOW
7x + 10 = 3(x+10)
7x + 10 = 3x + 30
4x = 20
x = 5, son's age NOW..Father is NOW 35
checking...10 years from NOW
45 = 3*15
You can put this solution on YOUR website! Let = his son's age now = Remain's age now = his son's age in 10 years = Remain's age in 10 years
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and
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His son's age now is 5
Remain's age now is 35
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check:
OK
