Jane produces custom greeting cards using six distinct work elements. She would like to produce $10$ cards

in each $8-$hour card$-$making session. The figure to the right details each work element and its associated

durations in minutes as well as their precedence relationships.

a$.$ What cycle time is required to satisfy the required output rate? $48$ minutes$/$card$.($Enter your response

as an integer.$)$

b$.$ What is the theoretical minimum number of workstations required? $2$ stations. $($Enter your response

rounded up to the next whole number.$)$

c$.$ If Jane identifies a four$-$station solution, what is the associated efficiency and balance delay? $($Enter your

responses as percentages rounded to one decimal place.$)$

Efficiency:

$\%.$

Balance delay:

$\%$