Arithmetic Series PS Question

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dunnec3: Junior | Next Rank: 30 Posts; Posts: 17; Joined: Sun Nov 22, 2015 12:42 am

by dunnec3 » Fri Dec 04, 2015 3:48 am

In the arithmetic sequence t1, t2, t3,......tn = 23 and tn = t(n-1) - 3 [(n-1) is supposed to be subscript as in term t(n-1)] for each n>1. What is the value of n for tn = -4

Colin

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Source: Beat The GMAT — Problem Solving | Fri Dec 04, 2015 3:48 am

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by GMATGuruNY » Fri Dec 04, 2015 5:42 am

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