can someone pls explain part e).. (its only based on part c) forget the rest)
when we are writing the equation why do we put 1.5(1.05)^n-1 > 40 as done in the markscheme not 1.5(1.05)^n > 40 ??? n is the number of days and it is asking for the day so we cant subtract one from the day
i mean day 1 gives n=1 , day 2 n=2 and so on...