Robert has bought some land, and plans to plant vegetable
which will need to be watered everyday in the summer. The water used
to irrigate the land is from a well. A pond is needed to store the water.
He has an old pump which has a volume flow rate of 20 L/s.
- Robert will plant 45 acres of vegetables. It is estimated that each acre needs 2,000 liters of water per day.