engineering recuitment BPSC Assistant Sanitary & Waste Management Officer Mock Test 2022 Environmental Engineering Sewage Sewage Treatment
The sewage of a city is discharged, with flow rate of 100 l/s and 250 mg/l BOD, into a river flowing at 300 l/s with 5 mg/l BOD. What will be the BOD of the diluted mixture in mg/l?
1
66.25
2
250
3
100
4
5