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cost performance index

Here we discuss Freely Available PMP® mock exam questions. Internet is full of free PMP® Simulators but most of these simulators does not provide good explanation of answers, here we discuss them.
catchnithi
Posts: 9
Joined: Tue Apr 04, 2017 1:38 am

cost performance index

Postby catchnithi Tue Apr 11, 2017 5:01 pm

A task was scheduled to employ two persons, full time, and take two weeks to complete. Instead, the project manager was only able to assign one person to this task. At the end of two weeks, the person assigned to the task was 75% complete. What is the cost performance index?

0.75
1.50
0.25
1.15


Answer : B
can explain..pls
manishpn
Expert
Expert
Posts: 2009
Joined: Sat Jan 04, 2014 3:55 pm

Re: cost performance index

Postby manishpn Tue Apr 11, 2017 5:06 pm

catchnithi wrote:A task was scheduled to employ two persons, full time, and take two weeks to complete. Instead, the project manager was only able to assign one person to this task. At the end of two weeks, the person assigned to the task was 75% complete. What is the cost performance index?

0.75
1.50
0.25
1.15


Answer : B
can explain..pls

Question is not of good quality
based on the logic used by the person who wrote the question
half of cost has been consumed and 0.75% of EV has been earned
so CPI= EV/AC = 0.75.0.5 = 1.5

However this is not right way of doing math as you are assuming both the resources are of same cost.
Br,
Manish P
PMP, PMI - ACP, SAFe Agilist
http://www.izenbridge.com/blog/7-effect ... ification/

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