An electronics factory produces an average of 500 computers per day in the first 15 days of March, and 9,000 computers in the next 15 days. How many computers does this factory produce on average per day in March?
某电子厂三月份前15天平均每天生产电脑500台，后15天生产电脑9000台，这个厂三月份平均每天生产电脑多少台？
<gadget id="calculator">500 * 15</gadget>
<output>7_500</output>

<gadget id="calculator">7_500 + 9_000</gadget>
<output>16_500</output>

<gadget id="calculator">15 + 15</gadget>
<output>30</output>

<gadget id="calculator">16_500 / 30</gadget>
<output>550</output>

<result>550</result>