engineering recuitment ISRO Scientist Mechanical Mock Test Industrial Engineering Operations Research PERT and CPM
The expected time (te) of a PERT activity in terms of optimistic time (to), pessimistic time (tp) and most likely time (tm) is given by
1
\({t_e} = \frac{{\left( {{t_o} + 4{t_m} + {t_p}} \right)}}{6}\)
2
\({t_e} = \frac{{{t_o} + 4{t_p} + {t_m}}}{6}\)
3
\({t_e} = \frac{{{t_o} + 4{t_m} + {t_p}}}{3}\)
4
\({t_e} = \frac{{{t_o} + 4{t_m} + {t_p}}}{4}\)