Now 225 cars are to be produced, and 216 cars will be produced in 12 days. According to this calculation, how many days will it take at least to complete the task?
现要生产225辆小汽车，12天生产216辆小汽车，照这样计算，至少需要多少天才能完成任务？
<gadget id="calculator">216 / 12</gadget>
<output>18</output>

<gadget id="calculator">225 / 18</gadget>
<output>25/2 = around 12.5</output>

<result>25/2 = around 12.5</result>