In a week, a cement factory produced 4,800 tons of cement in the first 3 days and 7,800 tons in the last 4 days. How many tons of cement was produced on average every day this week?
某水泥厂在一星期里，前3天共生产水泥0.48万吨，后4天共生产水泥0.78万吨．这一星期平均每天生产水泥多少万吨？
<gadget id="calculator">0.48 + 0.78</gadget>
<output>1.26</output>

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

<gadget id="calculator">1.26 / 7</gadget>
<output>0.18</output>

<result>0.18</result>