There is a planter with a working width of 1.8 meters. How many hectares can be sowed per hour if it is drawn by a tractor and calculated at 6 kilometers per hour?
有一台播种机，作业宽度是1.8米．用拖拉机牵引，按每小时行6千米计算，每小时可以播种多少公顷？
<gadget id="calculator">1.8 / 10_000</gadget>
<output>0.00018</output>

<gadget id="calculator">6 * 1_000 * 0.00018</gadget>
<output>1.08</output>

<result>1.08</result>