The cafeteria brought 120 tons of coal, and it has been burned for 40 days, 1.2 tons per day, and the rest will be burned in 30 days. How many tons per day are burned on average?
食堂运来120吨煤，已经烧了40天，每天烧1.2吨，余下的要30天烧完，平均每天烧多少吨？
<gadget id="calculator">40 * 1.2</gadget>
<output>48</output>

<gadget id="calculator">120 - 48</gadget>
<output>72</output>

<gadget id="calculator">72 / 30</gadget>
<output>12/5 = around 2.4</output>

<result>12/5 = around 2.4</result>