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# 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?

Given :
Rate of water flow = 2 km per hour
= $$\frac{2000}{60}$$ m/min
= $$\frac{100}{3}$$ m/min

Depth (h) of river = 3 m
Width (b) of = 40 m

So, we get,

Volume of water flowed in 1 min
= $$(\frac{100}{3} × 40 × 3)$$ $${m}^{3}$$
= 4000 $${m}^{3}$$.

Therefore, in 1 minute, 4000 $${m}^{3}$$ water will fall in the sea.