Floats are the slack times available within the allotted span of the noncritical activity.The
two most common floats are the
1) Total float
2) Free float
Free float is the excess of the time span defined from the earliest occurrence of the event
a to the
See the following example which will tell you the main purpose of dummy activity
and where dummy activity is used.
Suppose we have the following project of jobs with their immediate predecessors.
Draw the network
Express the objective function of the following linear programming problem in terms of nonbasic variables and hence evaluate the initial basic feasible solution.
Minimize Z = 3x1+2x2+7x3
x1+x2 = 10
2x1 x2 +x3 10
i) the const