The formula below is often used by project managers to compute E, the estimated time to complete a job, where O is the shortest completion time, P is the longest completion time, and M is the most likely completion time.E = 0 + 4M + P / 6Which of the following correctly gives P in terms of E, O, and M?
Correct answer: A. P = 6E - O - 4M
- A. P = 6E - O - 4M
- B. P = -6E + O + 4M
- C. P = O + 4M + E / 6
- D. P = O + 4M - E / 6
Explanation
Choice A is correct. Multiplying both sides of the equation by 6 results in 6E = O + 4M + P. Then, subtracting O + 4M from both sides of 6E = O + 4M + P gives P = 6E − O - 4M.
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