Mineral matter, ‘M’ and ash percentage ‘A’ in coal are roughly related as August 17, 2022 by admin Question: Mineral matter, ‘M’ and ash percentage ‘A’ in coal are roughly related as [A]. M = 1.8 A [B]. M = 0.5 A [C]. M = 1.1 A [D]. M = A Answer: Option C Explanation: No answer description available for this question.