Question 1145132
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For the solution / solutions of TWIN problems,  see the lesson

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=http://www.algebra.com/algebra/homework/Sequences-and-series/Word-problems-on-geometric-progressions.lesson>Word problems on geometric progressions</A>,  &nbsp;Problems &nbsp;1 &nbsp;and &nbsp;2

in this site.