A river 2m deep and 45m wide is flowing at a rate of 3km/hour .find the quantity of water that runs into the sea per minute.
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Area of cross section of river= 2 x 45 = 90 m²
so, water flowing into the sea= area of cross section x rate of flowing water
= 90 x 3000
= 270000 m³
there water flowing per minute= 270000 / 60 = 4500 m³
so, water flowing into the sea= area of cross section x rate of flowing water
= 90 x 3000
= 270000 m³
there water flowing per minute= 270000 / 60 = 4500 m³
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