The populations of termites and spiders in a certain house aregrowing exponentially. The house contains 80 termites the day youmove in. After four days, the house contains 150 termites. Threedays after moving in, there are two times as many termites asspiders. Eight days after moving in, there were four times as manytermites as spiders.
How long (in days) does it take the population of spiders totriple?