To produce a batch of parts, it is planned to produce 160 parts per day, which can be completed in 15 days, but actually produces 80 more parts per day, how many days will it actually take to complete? (Solve with ratio)
生产一批零件，计划每天生产160个，15天可以完成，实际每天多生产80个，实际需要几天完成？(用比例解)
<gadget id="calculator">160 * 15</gadget>
<output>2_400</output>

<gadget id="calculator">160 + 80</gadget>
<output>240</output>

<gadget id="calculator">2_400 / 240</gadget>
<output>10</output>

<result>10</result>