A service process is described by the above flowchart. After going through workstation A$,$ an order needs to be processed by one of the three lines, B$1-$C$1-$D$1,$ B$2-$C$2-$D$2,$ or B$3-$C$3-$D$3($in other words, they are substitutable$).$ Finally, all orders need to go through workstation $E.$

The capacities of the individual workstations are given as follows:

Workstation A has a capacity of $2$ orders$/$hour

Workstation B$1,$ B$2,$ and B$3$ have the same capacity of $2$ orders$/$hour

Workstation C$1,$ C$2,$ and C$3$ have the same capacity of $2$ orders$/$hour

Workstation D$1,$ D$2,$ and D$3$ have the same capacity of $3$ orders$/$hour

Workstation E has a capacity of $5$ orders$/$hour

What is process time of this service process in minutes?

Note:

Please do not include the unit of measure. For example, if your answer is $10$ minutes, enter $10.$

Round your answer to $2$ decimal places if it is not a whole number.