(Answered) : PROBLEM 6 (15 POINTS) Consider the following questions which refer to a capital budgeting problem with six projects represented by

PROBLEM 6 (15 POINTS) Consider the following questions which refer to a capital budgeting problem with six projects represented by 0-1 variables X,, X, X,, X, X, a) Write a constraint modeling a situation in which two and only two of the projects 1, 3, 5, and 6 must be undertaken b) Write a constraint modeling a situation in which projects 3 and 5 must be undertaken simultaneously, if at all c) Write a constraint modeling a situation in which projects 1 or 4 must be undertaken but not both d) Write constraints modeling a situation where project 4 cannot