SOLUTION: Langa is 4 times as old as Andrew right now.4 years from now, Langa will be 3 times as old as Andrew.How old are Langa and Andrew now?

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Question 1156341: Langa is 4 times as old as Andrew right now.4 years from now, Langa will be 3 times as old as
Andrew.How old are Langa and Andrew now?
Answer by mananth(16949) About Me  (Show Source):
You can put this solution on YOUR website!
L = 4A ( now)
4 years hence
Langa will be L+4
and Andrew will be A+4
L+4= 3(A+4)
But L=4A
4A+4 = 3A +12
4A -3A = 12-4
A= 8 Andrew is 8 years now
Langa'S age = 8*4 =32 years