330 Chapter 11
P11-9 A. First year depletion = $2,400,000 Cost of mine $40,000,000
*Student responses will vary. One reasonable approach is as
follows. If the machinery can be used only for this mine, it is
reasonable to base depreciation on the output of the mine;
that is, use units-of-production depreciation, rather than
Part A Part B
Revenue ($120 × 30,000 tons) $3,600,000 $3,600,000
D. Second year depletion = $1,649,000
Cost of mine $ 40,000,000
First year depletion 2,400,000