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Question
The rain intensity over 54 hectares of land is 50 mm/h, 30% of area consists of roof surface with runoff rate as 0.9, 30% is open field with runoff rate of 0.2 and remaining 40% is road network with runoff rate of 0.4. The storm water flow will be nearly
A.
2.6m³/s
B.
3.7m³/s
C.
4.8m³/s
D.
5.9m³/s
Answer ( Option B)

3.7m³/s

Solution

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