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This may be an easy problem, but I am confused what the heck

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This may be an easy problem, but I am confused what the heck [#permalink] New post 06 Aug 2006, 00:28
This may be an easy problem, but I am confused what the heck it is telling me on the stem. That is the one thing I think is different from ETS to Vue is the stems are harder to decipher in some instances...
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 [#permalink] New post 06 Aug 2006, 00:56
D

Question is asking what is the "number" of the term that has a value of -4?

First term = 23
t[n] - t[n-1] = -3 i.e difference in terms.

Formula for A.P
t[n] = a + (n-1) * d
-4 = 23 + (n-1) * (-3)
-4 = 23 -3n+3
3n = 30
n = 10
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 [#permalink] New post 06 Aug 2006, 01:05
Still confusing. These are the kinds of questions that scare me, when I have never seen anything like that in Kaplan, PR, or the GMAT OG 11...:(
Are there any good resources for questions like this?
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 [#permalink] New post 06 Aug 2006, 01:11
jamesrwright3 wrote:
Still confusing. These are the kinds of questions that scare me, when I have never seen anything like that in Kaplan, PR, or the GMAT OG 11...:(
Are there any good resources for questions like this?

1st term = 23
2nd term = 20
3rd term = 17

and so on

Nth term = -4. Find the "number" of this term i.e is it 9 th term or 10th term 11th etc.......
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  [#permalink] 06 Aug 2006, 01:11
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This may be an easy problem, but I am confused what the heck

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