separately from, and simultaneously with, the sawing and sanding, which are independential operations. A product needs to go through only one of the three assembly operations $($the operations are in parallel$).$

$K$

product needs to go through only one of the three assembly operations $($the operations are in parallel$).$

a$)$ Sawing is the bottleneck.

b$)$ The bottleneck time is $30$ minutes per unit $($round your response to two decimal places$).$

c$)$ The throughput time of the overall system is minutes $($round your response to two decimal places$).$