Water in a canal 3 m wide and 1.2 m deep,is flowing with the velocity – McqOptions

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1.	Water in a canal 3 m wide and 1.2 m deep,is flowing with the velocity of 10 km/h. how much area (in hectares) will it irrigate in half an hour, if 9 cm of standing water is needed?
A.	20
B.	18.8
C.	21
D.	20.4
Answer» B. 18.8

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