Problem $6-4($Static$)$

A producer of inkjet printers is planning to add a new line of printers, and you have been asked to balance the process, given the following task times and precedence relationships. Assume that cycle time is to be the minimum possible.

Task Length

$($minutes$)$ Immediate

$($Predecessor$)$

a $0\mathrm{.}2-$

b $0\mathrm{.}4$ a

c $0\mathrm{.}3-$

d $1\mathrm{.}3$ b$,$ c

e $0\mathrm{.}1-$

f $0\mathrm{.}8$ e

g $0\mathrm{.}3$ d$,$ f

h $1\mathrm{.}2$ g