In one fortnight of a given month, there was a Rain fall 10cm in a River valley. The area of river valley is 7280 km2 .This water is required to be drained from river valley to nearby farms How many drains of 1072 km long, 75 meter wide and 3m deep are needed to drain the water from the valley.
Answers
Answer:
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In advance
Answer:
I think and I am not sure but 172m of water needed to drain from the water from the valley