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The shortest possible time in which an activity can be achieved under ideal circumstances is known as ________

(a) Pessimistic time estimate

(b) Optimistic time estimate

(c) Expected time estimate

(d) The most likely time estimate

I had been asked this question by my school teacher while I was bunking the class.

I need to ask this question from PERT and CPM topic in section Building Plans, PERT and CPM of Construction & Building Materials

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Correct choice is (b) Optimistic time estimate

To elaborate: There are three kinds of time estimates made by PERT planners. These are the optimistic time estimate, the pessimistic time estimate and the most likely time estimate. The shortest possible time in which an activity can be achieved under ideal circumstances is known as the optimistic time estimate.

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