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Arithmetic sequence

Problem Solving — algebra and arithmetic (GMAT Focus Edition)
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Arithmetic sequence

by danjuma » Sat Dec 04, 2010 9:56 pm
In the arithmetic sequence T1, T2, T3......... Tn... T1 = 23 and Tn_1 - 3 for each n > 1. What is the value of n when Tn = -4?

a.10

b.7

c.6

d.20

e.22
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Source: — Quantitative Reasoning |
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by goyalsau » Sun Dec 05, 2010 11:51 pm
danjuma wrote:In the arithmetic sequence T1, T2, T3......... Tn... T1 = 23 and Tn_1 - 3 for each n > 1. What is the value of n when Tn = -4?

a.10

b.7

c.6

d.20

e.22
I think you have posted the same problem in problem solving section
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