Construction Planning and Management
If the excavation of earth is done manually then it costs Rs. 10 per cum. A machine can excavate at a fixed cost of Rs. 4000 plus a variable cost of Rs. 2 per cum. The quantity of earth for which the cost of excavation by machine will be equal to the cost of manual excavation is

500 cum
1000 cum
1500 cum
2000 cum

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

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

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