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Problem Solving...Help

by ramonsa » Wed Jun 03, 2009 3:02 pm
13. If a sequence of 8 consecutive odd integers with increasing values has 9 as its 7th term, what is the sum of the terms of the sequence?
(A) 22 (B) 32 (C) 36
(D) 40 (E) 44
Thanks..
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Source: — Data Sufficiency |
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by syr » Wed Jun 03, 2009 5:33 pm
Sequence of 8 consecutive odd intergers where 9 is the 7th term is

-3 -1 1 3 5 7 9 11
(7th term)

Place the 7th term and fill in the rest. We know that they are consecutive odd integers.


Summing the above sequence will give us 32.

HTH
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by ramonsa » Wed Jun 03, 2009 5:55 pm
Why do you use 11 instead of -5.
Thanks
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