GATE MN · 2025 · MN
Question 35: Mineral Economics
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Question 35
MNNAT1 markNeeds review
The relevant information on metal extraction from a copper mine are given below
Selling price of copper (Rs./kg) = 900
Mining cost (Rs./tonne of ore) = 500
Processing cost (Rs./tonne of ore) = 2000
Overall recovery of copper metal (%) = 70
Ignoring all other costs, the breakeven cutof grade of copper, in %, is _____ (rounded off to 2 decimal places)
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2025MN
GATE MN 2025 · Paper 1
Mining Engineering · Original paper archive
- Section
- Mining Engineering
- Question type
- Numerical answer (NAT)
- Marks
- 1 mark
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