Luping Machinery Factory needs to produce 1,000 parts, and has already produced 760. If the rest is calculated as 160 parts in 2 hours, how many hours will it take to complete the task?
陆平机械厂要生产1000个零件，已经生产了760个，剩下的如果按2小时生产160个计算，还要几小时才能完成任务？
<gadget id="calculator">1_000 - 760</gadget>
<output>240</output>

<gadget id="calculator">160 / 2</gadget>
<output>80</output>

<gadget id="calculator">240 / 80</gadget>
<output>3</output>

<result>3</result>