A river 3m deep and 40m wide is flowing at the rate of 2km per hour. How much water will fall into the sea in a minute?

Given

Depth of river, h = 3 m

Width of river, b = 40 m

Rate of water flow = 2km per hour 

Find out

We have to find out how much water will fall into the sea in a minute

Solution

Rate of water flow = 2km per hour

= 2000m/60min

= 100/3 m/min

Now, Volume of water flowed in 1 min = (100/3) × 40 × 3 = 4000m³

Answer

Thus, 4000 m³ of water will fall into the sea in a minute.

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