A 3,000-meter canal was built, and 2,250 meters were built in 30 days. According to this calculation, how many days will it take to complete the canal?
修一条3000米的水渠，30天修了2250米，照这样计算，修完这条水渠还需多少天？
<gadget id="calculator">3_000 - 2_250</gadget>
<output>750</output>

<gadget id="calculator">2_250 / 30</gadget>
<output>75</output>

<gadget id="calculator">750 / 75</gadget>
<output>10</output>

<result>10</result>