If a pile of coal burns 1.5 tons per day, it can be burned for 32 days; if it burns 1.2 tons per day, how many days can it be burned?
一堆煤，每天烧1.5吨，可以烧32天；如果每天烧1.2吨，可以烧多少天．
<gadget id="calculator">32 / 1.2</gadget>
<output>26.666667</output>

<gadget id="calculator">1.5 * 26.666667</gadget>
<output>40</output>

<result>40</result>