Tokyo Ltd has two types of equipment. The management decided that different depreciation methods should be applied in determining the annual depreciation charges. Information on the equipment is summarised as follows (ignore GST).

1. the depreciation is recorded to the nearest month, calculate the depreciation charges for the year ended 30 June 2021. (10 marks)
2. Make the journal entries for the year ended 30 June 2021 (4 marks)
3. Explain the factors causing a depreciable asset to have a limited useful life (6 marks)