What is the ratio of total production for two years together for unit B to that of unit C?
None of these
Total production by unit B in 2001 and 2002 together = (75+60) = 135 lakh tons
Total production by unit C in 2001 and 2002 together = (100+110) = 210 lakh tons
∴ Required ratio = (135:210) = 9 : 14