Problem #$1$: The data related to the activities of a project are given in Table $1.$ Show the calculations in three tables, the Forward Pass Table, the Backward Pass Table and the Critical Activity Identification Table. Then answer questions $1$ through $22.$

Table $1$

Activity

A

B

C

D

E

F

G

H

I

J

K

Immediate Predecessors

$--$

$--$

$--$

A$,$ B

B

D$,$ E

A$,$ E

C$,$ F

F$,$ G

G

H$,$ I

Activity Time $($days$)$

$9$

$4$

$6$

$7$

$9$

$6$

$7$

$6$

$4$

$9$

$8$

What is the earliest finish time of activity D$?$

What is the earliest finish time of activity E$?$

What is the earliest finish time of activity J$?$

What is the earliest finish time for activity K$?$

What is the latest start time of activity B$?$

What is the latest start time of activity C$?$

What is the latest start time of activity D$?$

What is the latest start time of activity E$?$

What is the latest start time of activity F$?$

What is the latest start time of activity G$?$

What is the latest start time of activity H$?$

What is the slack of activity A$?$

What is the slack of activity B$?$

What is the slack of activity C$?$

What is the slack of activity D$?$

What is the slack of activity E$?$

What is the slack of activity G$?$

What is the slack of activity H$?$

What is the slack of activity J$?$

What is the slack of activity K$?$

What is the length of the critical length?

What is the number of activities on the critical path?