Answers

2016-04-25T14:09:00+05:30
Ravi'spocket money=5x
sanj.... =7x
Ravi's exp...=3y
sanj........... =5y
5x-3y=80....(a)
7x-5y=80.....(b)
(a)*5 - (b)*3
25x-15y=400
21x-15y=240
x=40
ans=5x=5*40=200
7x=7*40=280



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