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A river 2 m deep and 45 m wide is running at the rate of 3 km/hr. The amount of water that runs into the per minute is?

4500 m3
27000 m3
3000 m3
2100 m3

Correct Answer: 4500 m3

Explanation:

Speed per min = (3 x 1000)/60 m = 50 m
Volume of water running per min. = (45 x 2 x 50) m²
= 4500 m³

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