pile of coal, originally planned to burn 750 kilograms per day, can be burned for 24 days, but actually burns 150 kilograms less than the original plan per day. How many more days can this pile of coal actually be burned?
一堆煤，原计划每天烧750千克，可以烧24天，实际每天比原计划少烧150千克，这堆煤实际可多烧几天？
<gadget id="calculator">750 * 24</gadget>
<output>18_000</output>

<gadget id="calculator">750 - 150</gadget>
<output>600</output>

<gadget id="calculator">18_000 / 600</gadget>
<output>30</output>

<result>30</result>