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Terms

by umaa » Mon Jan 12, 2009 8:02 am
In a sequence of terms in which each term is three times the previous term, what is the fourth term?

(1) The first term is 3.

(2) The second-to-last term is 310.
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Source: — Data Sufficiency |
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by dmateer25 » Mon Jan 12, 2009 8:11 am
(1) The first term is 3.

2nd term is 9
3rd term is 27
4th term is 81

Suff

(2) The second-to-last term is 310.

This is not sufficient because we don't know what term they mean by "second-to-last." You can't assume that this means the 3rd term. Therefore, this is insufficient.

A
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