A certain organization has five leaders and some number of organizers. Every year, the current leaders are kicked out of the organization. Next, each organizer must find two new people to join as organizers. Finally, five new people are elected from outside the organization to become leaders. In the beginning, there are fifteen members total. How many people total will be in the organization five years from now?
The last equation should read Nn+1 = N1.3n i.e. we should have N1 on the RHS, not Nn.
Ok. Not too surprising, I often get things wrong! However, it would be nice to know in what way I was wrong. Did I misinterpret the question? Was my logic wrong? Presumably, if you know it was wrong you know the right result. Do you also know the right logic? More information would be useful to identify the source of my error.