A help desk can answer $120$ calls per hour. The demand rate is $150$ calls per hour. What are the cycle time $($in minutes per call$)$ and utilization of the call cente

Multiple Choice

$0\mathrm{.}00674,0\mathrm{.}8$

$0\mathrm{.}5,1$

$0\mathrm{.}0083,1$

$0\mathrm{.}4,0\mathrm{.}8$