I'm working on a study assignment, which involves creating a WBS and GANTT chart for a 6-month project.
Then I'm supposed expedite one of the tasks by increasing resources to it, thus decreasing the amount of time required to perform it.
So I add another resource to one of the tasks, and give both resources an even share of the time, so that the amount of time the task will take halved.
Now the assignment claims that I should able to reduce time and costs by doing this.
I can see how it reduces time, but how can it reduce cost, when I still have to pay the same amount of money for both resources per unit of work?
Broadly speaking, is it ever possible to reduce the overall cost of a project, purely by using crashing techniques?