Question 555415: George is 3 years older than his sister Janet. In 7 years she will be six-sevenths of his age. How old is George? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = George's age now
Let = Janet's age now
given:
(1)
(2)
--------------------
(1)
Substitute (1) into (2)
(2)
(2)
(2)
(2)
(2)
and, since
(1)
(1)
(1)
George is 14
check answer
(2)
(2)
(2)
(2)
(2)
OK
