The permanent machinery factory plans to produce 330 machine tools, and 176 machines were produced in the first 8 days. According to this calculation, how many days will it take to complete the task? (Solve with ratio)
永久机械厂计划生产330台机床，前8天生产了176台，照这样计算，完成任务还需要多少天？(用比例解)
<gadget id="calculator">330 - 176</gadget>
<output>154</output>

<gadget id="calculator">176 / 8</gadget>
<output>22</output>

<gadget id="calculator">154 / 22</gadget>
<output>7</output>

<result>7</result>