solution

A student has developed a project and wants to accelerate the
schedule

Present
Accelerated

Duration
Cost
Duration Cost

a
4 $100

2
$300

b
4 $ 50

$100

c
5 $250

4
$350

d
3 $100

cannot accelerate

e
7 $100

6
$170

f
7 $300

5
$600

. Below network diagram (Activity on Arrow) and table show all
information needed. Dotted arrow is used as a “dummy”; no activity,
only shows precedence. Partial crashing is available. Show your
work for crashing.

1. Without any crashing (acceleration), how long is the
   project expected to take?
2. Crash the project by maximum available time. What
   activities should we crash?
3. What is the total additional cost for maximum
   crash?