A batch of coal is planned to burn 4.8 tons per day and can be burned for 56 days. If the daily coal consumption is reduced by 0.6 tons, how many days can this batch of coal be burned for?
一批煤计划每天烧4.8吨，可以烧56天，如果每天用煤量减少0.6吨，这批煤可以烧多少天？
<gadget id="calculator">4.8 - 0.6</gadget>
<output>4.2</output>

<gadget id="calculator">56 / 4.2</gadget>
<output>13.333333</output>

<gadget id="calculator">4.8 * 13.333333</gadget>
<output>63.999998</output>

<result>63.999998</result>