Answer:
A. $4
Explanation:
The computation of amount of depletion per ton is shown below:-
Depletion per ton = (Acquisition cost of land + Estimated restoration costs- Salvage value) ÷ Tons of recoverable reserves
= ($7,500,000 + $1,500,000 - $1,000,000) ÷ 2,000,000 tons
= (9,000,000 - $1,000,000) ÷ 2,000,000 tons
= $8,000,000 ÷ 2,000,000 tons
= $4
Therefore for computing the depletion per ton we simply applied the above formula.