An engineering team repaired a 2,400-meter road, and built 600 meters in the first 3 days. According to this calculation, how many days will it take to complete the road?
某工程队修一条2400米的公路，前3天修了600米，照这样计算，修完这条公路还要多少天？
<gadget id="calculator">2_400 - 600</gadget>
<output>1_800</output>

<gadget id="calculator">600 / 3</gadget>
<output>200</output>

<gadget id="calculator">1_800 / 200</gadget>
<output>9</output>

<result>9</result>