In a textile factory there are three steps on a worker$-$paced line producing dresses. There is one worker per station and no inventory is stored between the steps. The capacities at each step are

Place Pattern: $7\mathrm{.}5$ units$/$hour

Pin: $5$ units$/$hour

Cut: $4$ units$/$hour

What is the resource utilization of Cut if the demand rate is $3$ dresses per hour?