Answer:
B's depreciation is $ 9120
Step-by-step explanation:
Given data:
Year Depreciation base remaining Life Depr. fraction Depr. Exp
2009 68400 ( 72000 - 3600) 5 yr 5/15 (5/15*68400) = 22,800
2010 68400 4 yr 4/15 (4/15 *68400) =18,240
where 15 is sum of (5+4+3+2+1)
Total depreciation at the end of 2010 is (22800 + 18240 = 41040)
New overhead value is (68400 - 41040 = 27360)
B's depreciation is 27360/3 = $ 9120