If exactly three projects are to be selected from a set of five projects, this would be written as three separate constraints in an integer program.

Question

Quizplus · Accepted Answer

This can be written as one constraint using the "choose" or "combination" function. For example, the constraint could be written as "choose(5,3) = 1", which states that out of 5 projects, select 3 of them and there is only 1 way to do so.

If Exactly Three Projects Are to Be Selected from a Set