The purchasing station purchases waste paper. Buy 2844 kg on the first day, buy 3607 kg on the second day, buy 2780 kg on the third day, how many kilograms are bought on average every day?
收购站收购废纸．第一天收购2844千克，第二天收购3607千克，第三天收购2780千克，平均每天收购多少千克？
<gadget id="calculator">2_844 + 3_607 + 2_780</gadget>
<output>9_231</output>

<gadget id="calculator">9_231 / 3</gadget>
<output>3_077</output>

<result>3_077</result>