Chapter 3.1, Problem 20E

In Problems $17\text{-}24$, convert the given time period to years, in reduced fraction form, assuming a $360$ -day year [this assumption does not affect the number of quarters $\left(4\right)$, months $\left(12\right)$, or weeks $\left(52\right)$ in a year ].

$90\text{ days}$