The school cafeteria brought 3.6 tons of coal and planned to burn it for 10 days. Due to the improvement of the stove, 0.06 tons of coal are now saved every day. How many days can this pile of coal be burned now?
学校食堂运来3.6吨煤，计划烧10天．由于改进了炉灶，现在每天节省0.06吨煤，这堆煤现在可以烧多少天？
<gadget id="calculator">3.6 / 10</gadget>
<output>0.36</output>

<gadget id="calculator">0.36 - 0.06</gadget>
<output>0.3</output>

<gadget id="calculator">3.6 / 0.3</gadget>
<output>12</output>

<result>12</result>