A River 2.5 m Deep and 45 m Wide is Flowing at the Speed of 3.6 km/ hour :

A river 2.5 m deep and 45 m wide is flowing at the speed of 3.6 km/ hour. The amount of water that runs into the sea per minute is

1. 6650 m³
2. 6750 m³            
3. 6850 m³
4. 6950 cm³