The store originally had 300 tons of flour, and another 240 tons were shipped in. If these flours are sold out in 9 days, how many tons of flour are sold on average every day?
商店原有面粉300吨，又运来240吨，如果这些面粉9天卖完，平均每天卖面粉多少吨？
<gadget id="calculator">300 + 240</gadget>
<output>540</output>

<gadget id="calculator">540 / 9</gadget>
<output>60</output>

<result>60</result>