Computing Problem Assembly Line Performance

Auto Link PR$,$ INC. You want to produce $400$ links per day to satisfy the demand of one of your clients. According to the work shift, of $8$ hours per day each employee will take a total of $1$ hour per shift to rest, eat, etc., resulting in $7$ net hours of work per day. The sum of the times of the tasks necessary to produce a linket is $5$ minutes per linket. Calculate the minimum number of workstations.