a proces is accomplished in

$4$

$$sequential steps

$-$

$$s

$1$

$,$

$$s

$2$

$,$

$$s

$3$

$,$

$$and s

$4$

$.$

$$the lead times

$($

in minutes

$)$

$$and the number of resources for every step are indicated in the table below. Assuming infinite customer deamdn, what is the utilization of process s s$1$ is $12$ minutes and $1$ resource