The following information is for Chambersburg Corp. for 2018 and 2017. Chambersburg uses the straight-line depreciation method.
2018 2017
Property, plant, and equipment $ 250,000 $190,000
Accumulated depreciation 100,000 85,000
Depreciation expense 62,500 47,500
Net sales 1,000,000 900,000
Average total assets 625,000 475,000
Refer to the information for Chambersburg Corp. Using the 2018 data, what is the average life of Chambersburg's property, plant, and equipment (rounded to one decimal place)?
a. 4.0 years
b. 10.0 years
c. 2.5 years
d. 1.6 years