b$)$ What is the average throughput time, i$.$e$.,$ flow time $[$in mins$]?$

$($Hint: Every $10$ minutes, $3$ jobs come to the process $(1$ job to M$1,2$ jobs to M$2).$ To get the average throughput time $($TPT$),$ you need to calculate the TPT for each of the three jobs and then take the average. Do not round your answer. $)$

c$)$ Is the process demand$-$ or supply$-$constrained? What is the flow rate under the given schedule $($in units$/$hour$)?$

d$)$ What is the actual cycle time under this schedule $($in minutes$)?$