Concept:Net book value is the remaining value of an asset after all depreciation recorded up to a particular date has been subtracted from its original cost.
Explanation:To determine the net book value of the machine on 31 December 2017, use:
NBV=Cost of machine−Accumulated depreciationAccumulated depreciation is the total depreciation charged on the machine from the date it was brought into use up to 31 December 2017.
The information supplied here does not state the cost price of the machine.
It also does not state the depreciation method, the depreciation rate, the residual value or the date of purchase.
As a result, the amount of accumulated depreciation cannot be worked out.
Consequently, the net book value cannot be calculated, and no option can be confirmed as the correct answer.
Answer:Not determinable from the information provided.