Question

A river 2m deep and 40m wide is flowing at the rate of 4.5 km per hour . How many cubic metres of water runs into the sea per minute.

Answer 1

Given :

Depth of the river = 2m

Width of river = 40m

Flow rate = 4.5 km/hr   = 75m/min

To Find :

Volume of water flowing into the sea

Solution :

• Volume of water that flows into sea per minute = Area(Flow rate)
• By substituting the given values

              = 40×2×75

              = 6000 cubic meters

For every minute 6000 cubic meters of water flows into the sea

Answer 2

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