It was originally planned to take 14 days to process a batch of parts, with an average of 150 parts processed per day. Actually process 210 per day, how many days to complete the task? (Solve with ratio)
加工一批零件，原计划用14天，平均每天加工150个．实际每天加工210个，实际几天完成任务？(用比例解)
<gadget id="calculator">14 * 150</gadget>
<output>2_100</output>

<gadget id="calculator">2_100 / 210</gadget>
<output>10</output>

<result>10</result>