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In a sequence of terms in which each term is three times the

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In a sequence of terms in which each term is three times the [#permalink] New post 13 Oct 2009, 06:36
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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 3^10.

Last edited by hogann on 13 Oct 2009, 11:41, edited 1 time in total.
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Re: Tuesday Q1 - Fourth Term [#permalink] New post 13 Oct 2009, 07:00
hogann wrote:
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.


If the 1st term is 3 then 2nd term will be 3*3 = 9 , 3rd term = 9*3 and 4th term is 9*3*3
so A is suf

310 is second to last but w/o the first term we cannot determine the number of terms hence B is insuf
Re: Tuesday Q1 - Fourth Term   [#permalink] 13 Oct 2009, 07:00
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