A pile of coal, originally planned to burn 3 tons per day, can be burned for 96 days. Actually burn 2.4 tons per day, how many days can actually burn? (Solve using ratio method)
一堆煤，原计划每天烧3吨，可以烧96天．实际每天烧2.4吨，实际可以烧多少天？(用比例方法解答)
<gadget id="calculator">3 * 96</gadget>
<output>288</output>

<gadget id="calculator">288 / 2.4</gadget>
<output>120</output>

<result>120</result>