The density of population over 40 hectares is 250/hectare. If water supply demand per day is 200 litres and sewage discharge is 80% of water supply, the sewage flow in sewers of separate system, is_____________________?
A. 0.05556 cumec

B. 0.05554 cumec

C. 0.0556 cumec

D. 0.05552 cumec

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