The critical path on a project has $4$ tasks, A$,$ B$,$ C$,$ and D$.$ The allowable amounts of crashing and the costs for crashing are given as

$\backslash$table$[[$Task$,$Adays allowed,$$$ day,$\backslash$table$[[$I of days$],[$Crashed$]],$Cost$],[$A$,2,30,,],[$B$,3,50,,],[$C$,1,25,,],[$D$,2,15,,]]$

DRAW:

To crash the project by $6$ days,

A should be crashed by $[$blank$1]$ days.

B should be crashed by $[$blank$2]$ days.

Cshould be crashed by $[$blank$3]$ days.

D should be crashed by $[$blank$4]$ days.

The order of crashing these will be $[$blank$5].$

The total cost of crashing by $6$ days will be$[$blank$6].$