There is 1 ton of coal in the cafeteria, and it is planned to use it for 8 days. The actual saving is 25 kg per day compared to the plan. How many days can it actually be used for?
食堂有1吨煤，计划用8天，实际每天比计划节约25千克，实际可用多少天？
<gadget id="calculator">1_000 / 8</gadget>
<output>125</output>

<gadget id="calculator">1 * 125</gadget>
<output>125</output>

<gadget id="calculator">125 - 25</gadget>
<output>100</output>

<gadget id="calculator">1_000 / 100</gadget>
<output>10</output>

<gadget id="calculator">1 * 10</gadget>
<output>10</output>

<result>10</result>