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saurabhmahajan: Master | Next Rank: 500 Posts; Posts: 250; Joined: Thu Jan 07, 2010 2:21 am; Thanked: 10 times

by saurabhmahajan » Wed Sep 22, 2010 7:11 am

Help with this

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Thanks and regards,
Saurabh Mahajan

I can understand you not winning,but i will not forgive you for not trying.

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Source: Beat The GMAT — Problem Solving | Wed Sep 22, 2010 7:11 am

nithi_mystics: Senior | Next Rank: 100 Posts; Posts: 55; Joined: Mon Sep 07, 2009 9:11 pm; Location: California; Thanked: 4 times

by nithi_mystics » Wed Sep 22, 2010 7:23 am

t1 = 23

Hence the series is

23,20,17,14,11,8,5,2,-1,-4

==> n =10

Thanks
Nithi

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