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* DS-5

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ST
 Post subject: * DS-5
 Post Posted: Tue Sep 23, 2008 1:14 pm 
Can someone explain to me why answer is E

Question

what is the value of the sum of a list of n odd integers?

1) n = 8
2) the square of the numbers of integers on the list is 64.
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SW
 Post subject:
 Post Posted: Tue Sep 30, 2008 5:44 pm 
The answer is E because (1) and (2) are stating the same thing, niether is sufficient.

1) The value of the sum of a list of 8 odd integers cannot be determined. (ie: 3+5+7+9+11+13+15+17 = 80, but we could have used any 8 odd integers)
2) n^2 = 64 is the same as n = 8, again we know the number of odd integers on the list, but we do not know sum.

As statement 1 states the same thing as statement 2, both statements combined will not be helpful either. Therefore, E is correct.
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esledge
 Post subject:
 Post Posted: Mon Oct 27, 2008 5:44 pm 
Offline
ManhattanGMAT Staff


Posts: 901
Location: St. Louis, MO
I don't find this one in our database of CAT questions, so can you please confirm the exact text and/or author of the problem? Otherwise, we will have to delete the question just to be sure we are not violating someone else's copyright. Thanks!

_________________
Emily Sledge
Instructor
ManhattanGMAT
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Saurav
 Post subject:
 Post Posted: Wed Oct 29, 2008 3:12 pm 
Question ?
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