Question: If the Optimistic duration is 5 days, the Most Likely duration is 10 days, and the Pessimistic duration is 20 days, what is the PERT

If the Optimistic duration is 5 days, the Most Likely duration is 10 days, and the Pessimistic duration is 20 days, what is the PERT estimated duration for the task? Round to the nearest whole number.

A. 20 days

B. 15 days

C. 5 days

D. 13 days

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