老师这道题是不是默认直线折旧法了？

问题如下：

Assume no additional or disposal fixed asset during the year, a company had fixed assets of $2 million at the beginning of the year. The accumulated depreciation is from $0.8 million at the beginning of the year to $1 million at the end of the year. The estimated remaining life of fixed assets is:

选项：

A.

8 years

B.

10 years

C.

5 years

解释：

C is correct.

Estimated remaining life=net PP&E/ depreciation expense= (2-1)/(1-0.8)=5 years