To build a 24-kilometer road, an engineering team has built 1.5 kilometers in the first 3 days. According to this calculation, how many days will it take to complete the road? (Solve with ratio)
要修一条长24千米的公路，一个工程队前3天已修了1.5千米，照这样计算，修完这条路还需要多少天？(用比例解)
<gadget id="calculator">24 - 1.5</gadget>
<output>22.5</output>

<gadget id="calculator">3 * 22.5</gadget>
<output>67.5</output>

<gadget id="calculator">67.5 / 1.5</gadget>
<output>45</output>

<result>45</result>