The two workshops produced a total of 690 parts in 15 days. If the first workshop produces an average of 24 parts per day, how many parts does the second workshop produce on average per day?
两个车间15天共生产零件690个．如果第一车间平均每天生产零件24个，第二车间平均每天生产零件多少个？
<gadget id="calculator">24 * 15</gadget>
<output>360</output>

<gadget id="calculator">690 - 360</gadget>
<output>330</output>

<gadget id="calculator">330 / 15</gadget>
<output>22</output>

<result>22</result>