A river 20 m deep and 36 m wide is flowing at the rate of 2.7 km/hr. The amount of water (in $$m^3$$​) that runs into the sea per minute is _____.

Correct option is B

Given:

Depth of river (d) = 20 m
Width of river (w) = 36 m
Flow rate = 2.7 km/hr
Time = 1 minute

Formula Used:
Volume of water = Depth × Width × Flow rate × Time

Solution:
Flow rate (in m/min) = 2.7 ×$$\frac{1000 }{ 60}$$​ = 45 m/min
Volume of water = 20 × 36 × 45 × 1 = 32400 m³