Duration doesn't add up!

[spook007]

I know this subject has been covered and I've googled and searched, but for the life of me I can't seem to get either get it working right, or understanding this correctly!

I've created a simple summary task with 3 subtasks. Task A is 1d?, Task B is 5h?, Task C is 5h?.
The task requires two people, the amount of time to complete the tasks is not affected by the amount of resources added to it. The work resources work 4 days a week for 10 hours.
My setup looks like this:

Task A
1 Day?, Fixed Units, Effort Driven
Resource A, 100%, 10hrs
Resource B, 100%, 10hrs

Task B
5h?, Fixed Units, Effort Driven
Resource A, 100%, 5hrs
Resource B, 100%, 5hrs

Task C
5h?, Fixed Units, Effort Driven
Resource A, 100%, 5hrs
Resource B, 100%, 5hrs

My task summary reads:
Duration 2.5 days, Fixed duration

My issue is that the entire project should only take 2 days, not 2.5 days as the task summary indicates. I looked at the review information on the wizard and it breaks down my tasks with the following:

Task A
Duration: 1.25d
Work: 20h

Task B
Duration: 0.63d
Work: 10h

Task C
Duration: 0.63d
Work: 10h

Why does it set the duration to 1.25d and 0.63d when I've already told it that it's 1 day and 5hrs!? I have also confirmed that my work days are set to 10hr work days not 8. I've also tried setting the type to fixed duration and I get the same numbers. Any suggestions would be welcomed! Thanks!

 

[PDQBach]

1. Tools | Change Working Time ... and make certain that you have set the days to have the hours of work you are using.

2. Project | Project Information... and change the Start time of the project to match the start time you entered in the change above.

3. Tools | Options | View-tab and select a date display which shows the date and time.