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

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Construction Planning and Management
Assertion A: For a given depth of cut, the output of a power shovel can be increased by decreasing the angle of swing.Reason R: If the angle of swing is decreased, the cycle time will be decreased.

Both A and R is true but R is not the correct explanation of A
A is true but R is false
Both A and R is true and R is the correct explanation of A
A is false but R is true

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