SOLUTION: Ben is 3 times as old as jin now. In 2 year time Ben will be twice as old as jin. How old is jin now.
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Question 1033210: Ben is 3 times as old as jin now. In 2 year time Ben will be twice as old as jin. How old is jin now.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = Ben's age now
Let = Jin's age now
--------------------------
(1)
(2)
-----------------------
Substitute (1) into (2)
(2)
(2)
(2)
Jin is 2 now
----------------
check:
(1)
(1)
and
(2)
(2)
(2)
(2)
OK
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