Question

A river 9m deep and 50m wide is flowing at the rate of 3km per hour. How much water will fall into the sea in a minute?

Answer 1

Explanation:

area of river depth ×width

9×50=450m²

amount of water that falls into the sea =area of river × flow rate

=450m²×3km÷h

=450×3×1000m³/60min

=22500

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