engineering recuitment ISRO Scientist Mechanical Mock Test Industrial Engineering Operations Research PERT and CPM
The three-time estimates of a PERT activity, i.e. optimistic time, pessimistic time and most likely time, are 7 min, 13 min and 9 min, respectively. The expected time (in minutes) and the variance of the activity will be:
1
15.67 and 1.5
2
11.33 and 1.5
3
15.67 and 1
4
9.33 and 1