Is the sum of X consecutive numbers zero?
(1) The largest number is 5.
(2) The median number is zero.
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nikhilagrawal
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I think B.
1) Tells us nothing about X. - Insufficient
2) Tells us that the series is centered on 0, so sum of terms must also equal 0 regardless of X.
e.g.
sum: -2,-1,0,1,2 =0
sum: -4,-3,-2,-1,0,1,2,3,4 = 0
1) Tells us nothing about X. - Insufficient
2) Tells us that the series is centered on 0, so sum of terms must also equal 0 regardless of X.
e.g.
sum: -2,-1,0,1,2 =0
sum: -4,-3,-2,-1,0,1,2,3,4 = 0
-
nikhilagrawal
- Senior | Next Rank: 100 Posts
- Posts: 81
- Joined: Thu Jun 12, 2008 1:57 pm
- Thanked: 1 times
