## Oliver Lehmann Question on Floats

Discuss PMP doubts, tips and lesson learned. iZenBridge makes PMP® Certification easy
smurthy
Posts: 4
Joined: Sat Nov 08, 2014 11:28 am

### Oliver Lehmann Question on Floats

Hi
Please see the attached image file.
The related options are:
(a) Activity B has a free float of 10 days
(b) Activity B has a total float of 10 days.

Total float : the maximum amount of time an activity can be delayed from its early start without delaying the entire project
Free Float : the maximum amount of time an activity can be delayed without delaying the early start of any of its succeeding activities.

I chose option (a) but correct answer is indicated as (b).
Can anyone explain this.

Thanks
Narayana
Attachments
PMPQuestion.png (10.59 KiB) Viewed 873 times
signor_rk
Contributor
Posts: 182
Joined: Wed Jun 18, 2014 3:47 pm

### Re: Oliver Lehmann Question on Floats

hi Narayana,

This is the Q # 18 of Oliver F Lehmann's Q-75 Mock Test.

The Options are:
A. Activity B has a free float of 10 d.
B. Activity B has a total float of 10 d
C. Activity A has a free float of 10 d
D. Activity A has a total float of 10 d

Option # C & D can be removed straight way.
Now , out of Option # A & B :
The Free Float for Activity B = ES of Activity D - EF of Activity B -1 = 31 -21 -1 = 9 days
The Total Float for Activity B = LS of Activity B - ES of Activity B = 26 - 16 = 10 days

You may please refer to Page # 177 , Figure 6-18 PMBOK Guide Fifth Edition for the necessary concept.
So , the correct answer Option is Option # B. Activity B has a total float of 10 d

Hope this should be helpful.
Regards ,

Ranjit