If B.O.D. of wastewater sample after 5 days incubation at 20ºC is 100 mg/l, deoxygenation rate constant at 20ºC is 0. 1 per day, ultimate B.O.D. will be

If B.O.D. of wastewater sample after 5 days incubation at 20ºC is 100

1.	If B.O.D. of wastewater sample after 5 days incubation at 20ºC is 100 mg/l, deoxygenation rate constant at 20ºC is 0. 1 per day, ultimate B.O.D. will be
A.	120.20 mg/l
B.	146.25 mg/l
C.	200.45 mg/l
D.	225.60 mg/l
Answer» C. 200.45 mg/l