To build a 2-kilometer road, 1.5 kilometers were repaired in 3 days after starting the construction. According to this calculation, how many days will it take to complete the road?
修一条2千米的公路，开工3天修了1.5千米，照这样计算，修完这条路还要多少天？
<gadget id="calculator">2 - 1.5</gadget>
<output>0.5</output>

<gadget id="calculator">1.5 / 3</gadget>
<output>0.5</output>

<gadget id="calculator">0.5 / 0.5</gadget>
<output>1</output>

<result>1</result>