A small project consists following activities. The relevant data about these activities is given below:Overhead cost per week is 50 Rs. per week. Total cost of the project (in Rs.) if the project duration is reduced by 2 week isCorrect answer is between '854,856'. Can you explain this answer?

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A small project consists following activities. The relevant data about these activities is given below:

Overhead cost per week is 50 Rs. per week. Total cost of the project (in Rs.) if the project duration is reduced by 2 week is

Correct answer is between '854,856'. Can you explain this answer?

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A small project consists following activities. The relevant data about...

The resulting network is shown in figure.
The critical path is 1-3-4-5 and duration = 18 week and the minimum duration = 12 week
Total cost = 18×50 = 900 Rs.

Activities lie on the critical path control the project duration so we can shorten the duration of these critical activities.
The minimum cost of crashing out of (1-3), (3-4), (4-5) activities = 15 Rs per week
Reduced the activities 3-4 by 1 week then the total cost = 17×50 + 15 = 865 Rs
Now, there are two critical path viz. 1-3-4-5 and 1-4-5 and its project duration = 16 week
Now there are two ways of reducing the duration of project further either reduce the activity duration (1-3) and (1-4) combined (crashing cost = 45 Rs. per week) or (1-4) and (3-4) combined (crashing cost = 40 Rs. per week). The minimum cost of crashing is in 2^nd case.
Total cost = 16×50 + 15+ 40 = 855 Rs.

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A small project consists following activities. The relevant data about these activities is given below:Overhead cost per week is 50 Rs. per week. Total cost of the project (in Rs.) if the project duration is reduced by 2 week isCorrect answer is between '854,856'. Can you explain this answer?

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