Reference no: EM132190846

1. In shortest route models where a number of ‘side constraints’ are added, sometimes a phenomenon called ‘subtours’ occurs. What should we do in this case?

A. Rerun the models over and over again and hope that the subtours miraculously go away.

B. Add a constraint that forces none of the links/paths in the subtour to be selected by the model.

C. Add a constraint that does not allow all the links/paths in the subtours to be selected by the model, but allows some of the links/paths to be selected.

D. Add a constraint that does not allow all the links/paths in the subtours to be selected by the model, but selects the best n-1 links/paths to be included in the shortest path.

2. If a delay in an activity will delay completion of the whole project, the activity

is not on the critical path

is on the path with the shortest completion time

has no slack

has slack

has different EF and LF times

3. C&A orders 2,000 sheets plywood from a supplier per year. Ordering cost is $25 per order, annual inventory holding cost is 2% of item cost, and item cost is $20 per sheet. The supplier will give a 5% discount if C&A orders 500 sheets or more. Which of the following conclusions can be drawn? Check all that apply.

The economic order quantity calculated at the discounted price is not feasible.

C&A should take the discount.

C&A's holding cost is equal to its ordering cost when ordering at the best order quantity level.

The best order quantity is 513.

The best order quantity is 500.