SOLUTION: solve 'A' is five years older than 'B'.five years ago 'A' ; was twice as old as 'B' was then. find their present ages.

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Question 888383: solve 'A' is five years older than 'B'.five years ago 'A' ; was twice as old as 'B' was then. find their present ages.
Answer by skartikey(21) About Me  (Show Source):
You can put this solution on YOUR website!
we are given A=B+5 and A-5=2(B-5)
we substitute first equation in second and get
B+5-5=2(B-5)
B=2B-10
B=10 yrs
A=10+5=15 yrs