water in a canal , 6m wide and 1.5m deep , flowing with a speed of 10km/h . How much area will it irrigate in 30 minutes , if 8 cm of standing water is needed.​

water in a canal 6m wide and 15m deep flowing with a speed of 10kmh How much area will it irrigate in 30 minutes if 8 cm of standing water is needed class=