To build a road with a length of 800 meters, 250 meters were built in the first 5 days. According to this calculation, how many days will it take to complete the road?
修一条长800米的公路，前5天修了250米，照这样计算，再修多少天就能把这条公路修完？
<gadget id="calculator">800 - 250</gadget>
<output>550</output>

<gadget id="calculator">250 / 5</gadget>
<output>50</output>

<gadget id="calculator">550 / 50</gadget>
<output>11</output>

<result>11</result>