Construction Planning and Management
The reduction in project time normally results in

Increasing the direct cost and decreasing the indirect cost
Increasing the direct cost and indirect cost both
Decreasing the direct cost and indirect cost both
Decreasing the direct cost and increasing indirect cost

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Construction Planning and Management
In time-cost optimization of a project, crashing is done.

On all the activities lying on the critical path
Only on activities lying on the original critical path and having flatter cost slopes
On original critical activities and those that become critical at any stage of crashing in the order of ascending cost slope
On all the activities

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