最后5000/20的5000数据是怎么出来的？Cost不是10M吗？

问题如下：

An Australian company that reports under International Financial Reporting Standards (IFRS) purchases a plane with an expected useful life of 20 years. All costs are reported in Australian dollars. (2020-Mock-B-AM 58)

• TOTAL cost is A$10 million.
• A$1 million of the total cost is allocated to the plane’s interior (galleys and seating), which is completely refurbished every four years.
• A$4 million of the total cost is allocated to the turbines, which are replaced every eight years.
• No residual value is expected.

If the company uses straight-line depreciation, the depreciation expense for the first full year related to the plane would be closest to:

选项：

A.A$1,000 thousand.

B.A$500 thousand.

C.A$750 thousand.

解释：

IFRS requires each component of an asset to be separately depreciated. 1,000/4+4,000/8+5,000/20=1,000