winnerhere Master | Next Rank: 500 Posts View User Profile Posts: 231 Joined: Thu Apr 12, 2007 2:45 am Thanked: 5 times Followed by:1 members graph by winnerhere » Wed Oct 14, 2009 5:33 pm Using substitution I found the answer to be one among 2 and 5th option. I dont know the difference between the graph in second option and the fifth option. thanks in advance sai Top Quote