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90) Sum of consecutive integers

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by ern5231 » Wed May 12, 2010 11:38 pm
What is the value of the sum of consecutive integers T1+T2+T3...T50?
1) T1+T50 = 1
2) T25=T50

1) is suff but I am not sure abt 2
Last edited by ern5231 on Sun May 16, 2010 7:34 pm, edited 1 time in total.
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Source: — Data Sufficiency |
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by surajgarg » Thu May 13, 2010 12:28 am
I think T25=T50 is not a possible case since we are talking of consecutive integers.
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by ern5231 » Sun May 16, 2010 7:31 pm
Any opinions?
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by amanpandey2002 » Sun May 16, 2010 7:48 pm
I agree. Ist statement gives T1 = -24 andT50 = 25.
Also sum is 25 because all other terms are cancelling.
2 nd statement is incorrect.
It is contradicting the main question itself.
If integers are consecutive how can T25 = T50?
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by Stuart@KaplanGMAT » Mon May 17, 2010 11:36 am
ern5231 wrote:What is the value of the sum of consecutive integers T1+T2+T3...T50?
1) T1+T50 = 1
2) T25=T50

1) is suff but I am not sure abt 2
This is an impossible question, since statement (2) contradicts the information in the question stem. (How can you have consecutive integers with equal value?)

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