A river `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?

Explanation

Width of the rive = `40 m`, depth of the river = `3 m`
Length of water that falls into the sea in a minute
`= ((2000)/(60)) m = (100)/(3) m`
Volume of water that falls into the sea in a minute
= (length `xx` width `xx` depth)
`= ((100)/(3) xx 40 xx 3) m^(3) = 4000 m^(3)`