Question

river 3M deep 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

Area of flow of water =3*40=120m^2
Now speed of water =2kmph=2000/60=33.33m/m
So water falling into sea=120*33.33=4000m^3/min
I think it is helpful for you If you like please mark as brainliest

Answer 2

Given, a river 3m deep and 40m wide is flowing at the rate of 2km per hour.

Area of cross section of the river = 3 * 40 = 120 m2

Now, volume of water flowing through this cross section in every minute = Area * rate

                                                                                                 = 120 * 2 km/hr

                                                                                                 = 120 * (2000/60) m/min

                                                                                                 = 2 * 2000

                                                                                                 = 4000 m3

Since 1 m3 = 1000 litres

So, 4000 m3 = 4000 * 1000 litres = 4000000 litres

So, in 1 minute, water will fall into the sea is 4000000 litres.



i hope its help you
mark brainliest