Guangming Machinery Factory produces a batch of parts, 120 per day for the first 3 days, and 281 per day for the next 4 days. How many parts are produced per day on average these days?
光明机器厂生产一批零件，前3天每天生产120个，后4天每天生产281个，这些天平均每天生产多少个？
<gadget id="calculator">120 * 3</gadget>
<output>360</output>

<gadget id="calculator">281 * 4</gadget>
<output>1_124</output>

<gadget id="calculator">360 + 1_124</gadget>
<output>1_484</output>

<gadget id="calculator">3 + 4</gadget>
<output>7</output>

<gadget id="calculator">1_484 / 7</gadget>
<output>212</output>

<result>212</result>