Question

Use the following information for questions 17 to 26. Egon Spengler is planning a charity benefit gala for his "Save the City" campaign. Hawever, because one of his partners, Peter Venkman, has difficulty staying on task, the project is scheduled and they are running out of time. Egon has used project management principles to lay out the task relationships and he finds that if they follow the traditional schedule, as outlined below, they will not have enough time to get everything done before the weekend of the gala. Egon has created a list of tasks, their time requirements, and their relationships. He has also begun a network diagram, but needs to know what to do next. He knows that he needs to reduce the total time by five weeks. Preceding Crashing Activitylies) Cost/Week Activity (weeks) (weeks) $550 Determine gala theme Reserve portal location for A $1,000 gala Create Marketing Plan Ray Parker, Jr. to audition $1.500 $1,300 musical acts Determine ticket sales $800 Purchase supplies, including Stay Puff marshmallows 750 Pick musical act and sign contract $500 Sell tickets in person $1,250 Sell tickets online Gala! H, I, F, G

How much did crashing that last (fifth) week cost Egon?

$750

$1,000

$1,250

$1,500

Answer 1

Answer: $1,250

Explanation: First calculate the duration of all the paths that are required to start activity J

Paths	Time taken by path until activity J	Duration
		Crash A	Crash E	Crash B by 2 weeks	Crash I
ABCEHJ	7+5+7+6+4= 29	28	27	25	25
ABCEIJ	7+5+7+6+5= 30 (Critical path)	29	28	26	25
ABCFJ	7+5+7+7= 26	25	25	23	23
ABDGJ	7+5+6+4= 22	21	21	19	19
Total cost of crashing	0	550	550+800= $1350	1350+2000= $3350	3350+ 1250= $4600

1. Egon should crash Activity A, because Activity A comes on the critical path and activity A has the lowest crashing cost among the activities on critical path.
2. Similar concept will be used again – select the lowest crashing cost activity of the critical path. Crash E and calculate the total cost.
3. Now crash B by 2 weeks. Crashing B by two weeks will take the crashing budget to $3,350.
4. As, ABCEIJ is still critical path we have two remaining activities to crash ‘C or I’. crashing cost of I is less, therefore we crash I.

Crashing fifth week cost Egon $ 1,250