Question $2$

Consider a sequential process with $3$ stations. The processing time $($minutes per unit by $1$ employee$)$ and number of employees at each station are as follows:

Processing time

Number of Employees

$6$ employees

Station A: $4mi\frac{n}{?}$ unit

Station B: $2mi\frac{n}{?}$ unit

$2$ employees

Station C: $6mi\frac{n}{?}$ unit

$3$ employees

What is the process capacity $($for the whole process$)?$

$20$ units per hour

$30$ units per hour

$6$ units per minute

$6$ units per hour