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
A. M = 1.8 A
B. M = 0.5 A
C. M = 1.1 A
D. M = A