The roller of the road roller is 2 meters long, and it can roll 1500 meters of road in one hour. How much road surface can this road roller press in one hour?
压路机滚筒长2米，1小时能压路1500米，这台压路机1小时能压多少路面．
<gadget id="calculator">1_500 * 2</gadget>
<output>3_000</output>

<result>3_000</result>