Question

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

Answer 1

Answer:

Water flowing in river in 1 hour is 2km

Water flowing in river in 1 hour is 2000m

Water flowing in river in 1 minute is 2000/60 m = 100/3m..

Now,river is in the form of cuboid

Length = 100/3 m

Breadth =40 m

Height =3m.

Therefore,volume of water falling in the sea in 1 minute = volume of the cuboid

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