Question

John aims to pay a certain amount of money each month into a pension fund . He plans to pay 100$ in the first month , and then increase the amount paid by 5$ each month

a ) how much he will pay in the final month
b) how much will he pay altogether over the whole periode

Answer 1

There is not enough information to give an answer you do not inform us of how much money needs to be put into this pension fund. That information is needed to solve.