SOLUTION: A father is now three times as old a son,12 years ago he was 6 time as old as a son.find their present ages.
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Question 789380: A father is now three times as old a son,12 years ago he was 6 time as old as a son.find their present ages.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = father's age now
Let = son's age now
--------------
(1)
(2)
------------------------
Substitute (1) into (2)
(2)
(2)
(2)
(2)
and, since
(1)
(1)
(1)
--------------
The father is 60 and the son is 20
check:
(2)
(2)
(2)
(2)
OK
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