This is a CSIR-NET June 2016 Part A question of Mathematical Sciences, Chemical Sciences, Earth Sciences.
Question discussed: A mine supplies 10000 tons of copper ore, containing an average of 1.5 wt% copper, to a smelter every day. The smelter extracts 80% of the copper from the ore on the same day. What is the production of copper in tons/day?
(1) 80 (2) 12 (3) 120 (4) 150
Discussed by – Christy Varghese