Processing a batch of parts, if processing 360 parts per hour, only half of this batch of parts can be completed in 10 hours, now it is required to complete this batch of parts in 18 hours, how many parts should be processed per hour.
加工一批零件，如果每小时加工360个，10小时只能完成这批零件的一半，现在要求18小时完成这批零件，每小时要加工多少个零件．
<gadget id="calculator">360 * 10 * 2</gadget>
<output>7_200</output>

<gadget id="calculator">7_200 / 18</gadget>
<output>400</output>

<result>400</result>