Following activities with their predecessor activities and activity durations are given for a project.

Draw the network diagram

Calculate Earliest start time and Latest finish time

Identify Critical Path

Activity

P

Q

R

S

T

U

V

W

Predecessor

$-$

$-$

P

Q

R$,$S

R$,$S

T

U

Time

$3$

$4$

$5$

$5$

$7$

$5$

$2$

$10$