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Source: — Data Sufficiency |
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well

by JeffB » Mon Sep 07, 2009 12:48 pm
For Statement #1:

You could have a list of 0,2,0 or 0,0,0 - Insufficient.

Statement #2:

I think is sufficient.

I couldn't come up a list besides all 0s that's always summed up to zero.

Is B the OA?
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Re: well

by rish » Tue Sep 08, 2009 6:23 am
JeffB wrote:For Statement #1:

You could have a list of 0,2,0 or 0,0,0 - Insufficient.

Statement #2:

I think is sufficient.

I couldn't come up a list besides all 0s that's always summed up to zero.

Is B the OA?

Can you have a list that contains [2,-2] ? Here too, the sume would be zero ?

No where it is mentioned that , the list should contain positive numbers.

OA is B, but i cant understand this. M i missing something here ?
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by adamsmith2009 » Tue Sep 08, 2009 11:42 am
Remember the set contains more than 2 numbers so for any 2 numbers to add to zero, all the numbers would have to be 0
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by rish » Thu Sep 10, 2009 6:48 am
adamsmith2009 wrote:Remember the set contains more than 2 numbers so for any 2 numbers to add to zero, all the numbers would have to be 0

How about a list having [2,3,4,-4] ?

Here as per the second condition, the sum of any two numbers is 0.
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by Nermal » Fri Sep 11, 2009 8:02 am
How about a list having [2,3,4,-4] ?

Here as per the second condition, the sum of any two numbers is 0.
2+3=5
3+4=7
4+(-4)=0
2+4=6
2+(-4)=-2

These are sums very different from 0.[/quote]
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