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

Task #days allowed $$$$/$day

A $230$

B $350$

C $125$

D $215$

To crash the project by $6$ days,

A should be crashed by

$[$ Select $]$

days.

B should be crashed by

$[$ Select $]$

days.

C should be crashed by

$[$ Select $]$

days.

D should be crashed by

$[$ Select $]$

days.

The order of crashing these will be

$[$ Select $]$

$.$

The total cost of crashing by $6$ days will be

$[$ Select $]$

$.$