The Following Information Relates to Cranmore Manufacturing: to Produce a Unit

Multiple Choice

The following information relates to Cranmore Manufacturing: To produce a unit of product: $\begin{array}{ll}\text { Cutting department } & 5 \text { minutes per unit } \\\text { Wel ding department } & 8 \text { minutes per unit } \\\text { Polishing department } & 3 \text { minutes per unit } \\\text { Finishing department } & 4 \text { minutes per unit }\end{array}$ There is a wait time of 5 minutes before the cutting department begins a batch, 15 minutes between the cutting and welding departments, a move and pre-wait between welding and polishing of 12 minutes, and a move and pre-wait between the polishing and finishing departments of 8 minutes.
If Cranmore produces in batches of 10 units, how much time would have elapsed by the time the 10th unit is produced under a manufacturing cell environment (assuming the cell is processing continuously) ?

A) 60 minutes
B) 65 minutes
C) 150 minutes
D) some other amount