SOLUTION: Paula is 12 years older than her brother Bob.Four years from now Bob will be two thirds as old as Paula. how old are they now ?
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Question 658385: Paula is 12 years older than her brother Bob.Four years from now Bob will be two thirds as old as Paula. how old are they now ? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = Paula's age now
Let = Bob's age now
given:
(1)
(2)
---------------------------
(2)
(2)
Substitute (1) into (2)
(2)
(2)
(2)
(2)
and
(1)
(1)
(1)
Paula is 32
Bob is 20
------------
check:
In 4 years Paula is 36
In 4 years Bob is 24
Divide both sides by
OK
