The sewage treatment plant treated a total of 1.4 million tons of sewage in 4 Mondays. How many tons of sewage are treated on average every day?
污水处理厂4个星期一共处理污水140万吨，平均每天处理污水多少万吨？
<gadget id="calculator">4 * 7</gadget>
<output>28</output>

<gadget id="calculator">140 / 28</gadget>
<output>5</output>

<result>5</result>