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terms of a sequence

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terms of a sequence

by shibal » Thu Jul 09, 2009 1:17 pm
if the terms of a sequence are t1,t2,....tn, what is the value of n?
a. the sum of n is 3124
b. the avg of the n terms is 4

oa c
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by mehravikas » Thu Jul 09, 2009 10:27 pm
If the sum of n means sum of all the terms then answer is C.

Avg = sum of terms / number of terms

Statement 1 - Avg = 3124 / number of terms - Insufficient

Statement 2 - 4 = 3124 / number of terms - Insufficient

Combining 1 and 2 we get: 4 = 3124 / n
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