The width of the front wheels of the road roller is 3 meters, and it can travel 0.8 kilometers per hour. According to this calculation, how many hectares of roads are pressed per hour?
压路机前轮的宽度是3米，每小时可行驶0.8千米．照这样计算，每小时压的路合多少公顷？
<gadget id="calculator">3 / 10_000</gadget>
<output>3/10_000 = around 0.0003</output>

<gadget id="calculator">0.8 * 1_000 * (3/10_000)</gadget>
<output>0.24</output>

<result>0.24</result>