Answer:
a. The normal project length is 36 weeks.
b. The critical path in this project is A-C-E-F.
c. The activity that you choose to crash first to reduce the duration of the project by one week is E because it has the least expediting cost/week amongst A, C, E, F.
d. The project length if all activities are crashed to their minimum is 23 weeks.
e. The slack for activity D is 5 weeks.
Explanation:
a) The normal length of the project = completion time of last activity = 36 weeks.
b) The criteria for critical activity:
duration of the activity
where ES = Earliest start time, EF = Earliest finish time , LC = latest completion time, LF = latest finish time ,
The suffix- i refers to the preceding node, suffix-j refers to the succeeding node.
activities satisfying above all criteria are A, C, E, F
therefore critical path is A-C-E-F.
c) To reduce the project duration by 1 week. we should choose to crash among critical activities A, C, E, F. thus we choose to crash activity E because it has the least expediting cost/week amongst A, C, E, F.
d) if we crash all the activities to their minimum, then the project length = sum of crash time of all critical activities
= [6 + 10 + 6 + 1]
= 23 weeks.
e) The slack of activity d = LS - ES = 34 - 29
= 5 weeks
The critical path is given in the diagram,
Answer:
$12 billion.
Explanation:
Given: Value added during 2011= $78 billion.
Total sales= $90 billion.
Intermediate goods are the goods used to produce final product and it is not included in the calculation of GDP, however, it is included in the value of final goods.
Now, finding the value of intermediate goods purchased.
Intermediate goods=
⇒ Intermediate goods=
∴ Intermediate goods=
Hence, value of intermediate goods purchased is $12 billion.