Question 261387: Jack is 24 years older than Mary is now. Four years ago, he was seven times as old as Mary was then. How old is Jack now? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = Jack's age now
Let = Mary's age now
given:
(1)
(2)
----------------------------
From (1),
(1)
From (2),
(2)
(2)
(2)
Now add (1) and (2)
And, since
Jack is 32 now
check answer:
(2)
OK
