A production line at V$.$ J$.$ Sugumaran's machine shop has three stations. The first station can process a unirin $9$ minutes. The second station has three identical machines, each of which can process a unit in $15$ minutes $($each unit only needs to be processed on one of the three machines$).$ The third station can process a unit in $6$ minutes.

$$ is the bottleneck station, with a bottleneck time of $$ minutes per unit $($enter your response as a whole number$).$

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The process time of a station is the time to produce a given number of units $($or a batch of units$)$ at that workstation. Calculate the process time per unit for each station.

The process time for Station $1=$ minutes per unit $($enter your response as a whole number.$)$

The process time for Station $2=$ minutes per unit $($enter your response as a whole number.$)$

The process time for Station $3=$ minutes per unit $($enter your response as a whole number.$)$

The slowest station is the bottleneck station.

$$ is the bottleneck station.

Station $2$

Station $1$

C

Station $3$