$1$

Fill in the Blank $12$ points

Given is a PERT project network diagram as shown below.

$$

a$)$ The Project Completion time $=$ type your answer... $($in $2$ decimal places$)$

b$)$ The Earliest Start time, ES$,$ of Activity G $=($in $2$ decimal places$)$

c$)$ The Latest Finish time, LF$,$ of Acitivity $C=$ type your answer... $($in $2$ decimal places$)$

d$)$ The critical activities are $=($ex$.$ type in critical activities as ABCD $,$ no comma, no space$)$