Problem $8-6($Algo$)$

The desired dally output for an assembly line is $420$ units. This assembly line will operate $595$ minutes per day. The following table

contains information on this product's task times and precedence relationships:

b$.$ What is the workstation cycle time?

c$.$ Balance this line using the largest number of following tasks. Use the longest task time as a secondary criterion. $($Leave no cells

blank $-$ be certain to enter $"0"$ wherever required.$)$

d$.$ What is the efficlency of your line balance? $($Round your answer to $1$ decimal place.$)$