Solving the People Problem: Expressing Available Resources as a Single Fraction

[Last_Exile]

I have a process that takes a total of 25 mins to complete.
5 people are available to do 10 mins of it and 3 people the remainder.
The process can be done many times a day.

I don't know if it makes a difference but the 10 min part is only done by 1 person and the 15 min part can be done by any of the 3.

How can I express the number of people available for the process as a single fraction?

Thanks in advance...

 

[snipez90]

What exactly do you mean by the number of people for the process as a fraction? Are you saying that 1 of the 5 people does the 10 min part and 1 of the 3 people does the 15 min part?

 

[Last_Exile]

A total of 8 people are involved but not all of them will contribute. I want to be able to say "this process requires x number of people".

1 of the 5 people does the first part but any of the 3 people can do the second.

 

[CRGreathouse]

I, for one, still don't understand the question.