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Number in a list.

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Junior | Next Rank: 30 Posts
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by atulkumar79 » Thu Jun 25, 2009 10:33 am
There are more than 2 numbers in a certain list, is each of the numbers in the list equal to 0?

(1) The product of any 2 numbers in the list is equal to 0.

(2) The sum of any 2 numbers in the list is equal to 0.


This question came up in the official gmat prep test. I chose A but the prep software says B.
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Source: — Data Sufficiency |
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by abhinav85 » Thu Jun 25, 2009 10:37 am
IMO B.

statement 1 saying that sum product of any 2 numbers in the list is equal to 0 this could not be true in every case for ex..0,0,0,2.

Statement 2 saying that sum of any two numbers is equal to 0,that means
whenever we add any number the total is 0.Sufficeint.
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by atulkumar79 » Thu Jun 25, 2009 10:44 am
abhinav85 wrote:IMO B.

statement 1 saying that sum product of any 2 numbers in the list is equal to 0 this could not be true in every case for ex..0,0,0,2.

Statement 2 saying that sum of any two numbers is equal to 0,that means
whenever we add any number the total is 0.Sufficeint.


:idea: Thanks dude, I missed the point in solving it too fast :)
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