The Carry$-$on Luggage Company must set up an assembly line for a wheeled carry$-$on bag. Forecasts show that $44$

units per hour should be produced. The tasks required, task times, and precedence relationships are as follows:

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a$.$ What is the takt time?

b$.$ What is the theoretical number of workstations?

c$.$ Assign the tasks to the workstations to balance the line using the longest operating time rule.

d$.$ What is the efficiency of the balanced line?