A river 1.5 m deep and 30 m wide is flowing at the rate of 3 km per hour. The volume of water that runs into the sea minute is
Volume of a cuboid = Length × Breadth × Height
Length of the river = Speed of river = 3km (in an hr)
1km =1000 m and 1 hour =60 min
Speed in m per minute =
Volume of water that runs in a minute = 1.5 m × 30 m × 50 m = 2250 m3