Q289
If the value of ore is Rs. 600 per tonne, production cost Rs. 400 per tonne, and cost of overburden removal Rs. 50 per m3, the break-even stripping ratio in m3/tonne is
A.
4 : 1
AnswerB.
3 : 1
C.
1 : 3
D.
1 : 4
Answer: Option A
Solution
Answer: Option A
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