Construction Planning and Management
An excavator costs Rs. 20,00,000 and has an estimated life of 8 years. It has no salvage value at the end of 8 years. The book value of the excavator at the end of 3 years using general double declining balance method is

Rs. 10,50,000
Rs. 11,56,250
Rs. 8,43,750
Rs. 8,75,000

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

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