Three identical water pumps can irrigate 1.2 hectares of land in 4 hours. According to this calculation, how many hectares of land can be irrigated by one water pump per hour?
3台同样的抽水机，4小时可以浇地1.2公顷，照这样计算，一台抽水机每小时可以浇地多少公顷？
<gadget id="calculator">1.2 / 3 / 4</gadget>
<output>0.1</output>

<result>0.1</result>