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Activity X has a duration of 15 days, its Early Start Time is day 10 and its Late Finish
Time is day 25. Which of the following is true?
Group of answer choices
Activity is on the critical path
The float for this activity is 15
Its Early Finish Time is 10
This is the last activity of the project
Which of the following is NOT a project?
Group of answer choices
A construction company building a tower
A team designing a new car
A husband preparing a special dinner for his wife
A restaurant serving its customers
Numerical Question 1
ABC Electronics has to install 20 new projectors at LSBM in 20 days. The budget for
the project is £20,000 (£1,000 for each projector installed) and we are at the end of
day 10. So far, only 8 projectors have been installed and £12,500 have been already
spent due to an underestimation of project’s difficulty.
a) How long the project will take until completion?
b) How much will it cost in total?
Numerical Question 2

Required rate
= 10%
Year 0 Year 1 Year 2 Year 3 Year 4
Project A Outflows -400,000
Inflows 130,000 130,000 130,000 130,000
Project B Outflows -250,000
Inflows 72,000 72,000 72,000 72,000
a. Which of the projects above has the highest NPV? What is its NPV?
b. What is the payback period for Project A?
Numerical Question 3
Activity Immediate follower Duration
(weeks)
A E 12
B F 7
C D,G 9
D F 3
E F 6

F H 3
G H 10
H End 8
Based on the information above answer the following questions.
a. What is the duration of the project?
b. What is the Early Start Time of Activity D?
c. What is the Early Finish Time of Activity E?
d. What is the Late Finish Time of Activity B?
e. What is the Slack/Float of Activity F?
Numerical Question 4
We need to mark 230 exam scripts in one week. The staff for this job will work 8
hours per day from Monday to Friday and 6 hours on Saturday. It takes 60 minutes
to mark a script.
a. How many markers do we need?
b. How much is the Throughput Efficiency?
Numerical Question 5
A water distributor sells 150 20lt tanks per month (1,800 per year) and purchases in
quantities of 900 per order. The cost accounting department has analysed inventory
costs and has determined that the cost of placing an order is £40 and the annual
cost of holding one 20lt tank in inventory is £4.
a. Under its current policy of ordering, what is the water distributor’s total annual
inventory cost?
b. What is the Economic Order Quantity?