After adopting new technology, a thermal power plant can burn 100 tons of coal per day. It used to burn coal for 16 days, but now it can burn for 20 days. How many tons of coal can be saved every day compared with the original?
一个火力发电厂采用新技术后，每天烧煤100吨，原来烧16天的煤，现在可以烧20天，现在每天比原来节约用煤多少吨？
<gadget id="calculator">20 / 16</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">100 * (5/4)</gadget>
<output>125</output>

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

<result>25</result>