Question

A river 2m deep and 45m wide is flowing at the rate of 3km/h. Find the quantity of the water that runs into the sea per minute

Answer 1

Given that: Rate of water flow = 3km/h= (3000/60) m/min =50 m/min

Depth (h) of river = 2 m

Width (b) of river = 45 m

Volume of water flowed in 1 min = Rate of water flow ×depth of river ×width of river = 50×2×45 = 4500 m3

Hence, in 1 minute, 4500 m3 water will fall in the sea.