What are the percentage of reduced ore taken out starting from bottom?
(a) 98, 87, 47%
(b) 47, 78, 98%
(c) 74, 87, 89%
(d) 74, 87, 98%
I got this question during an internship interview.
This intriguing question originated from Reduction of Iron Oxides topic in division Industrial Applications of Fluidized Beds of Fluidization Engineering