A road with a length of 12 kilometers is built, and 1.5 kilometers is repaired in 3 days after starting construction. At this speed, how many days will it take to complete the road?
修一条长为12千米的公路，开工3天修了1.5千米，照这样的速度，修完公路共用多少天？
<gadget id="calculator">12 / 0.5</gadget>
<output>24</output>

<result>24</result>