A cement factory produces a total of 665.5 tons of cement in the first 3 days of a week, and an average of 244 tons per day in the last 4 days. How many tons of cement is produced on average per day this week?
一个水泥厂在一周的前3天一共生产水泥665.5吨，后4天平均每天生产244吨，这一周平均每天生产水泥多少吨？
<gadget id="calculator">1_641.5 / 7</gadget>
<output>234.5</output>

<result>234.5</result>