If it takes 8 hours for 8 people to dig a ditch of 8 meters, how many hours will it take for 100 people to dig a ditch of 100 meters?
8人挖8米的沟要8小时，那么用100人挖100米长的沟需要多少小时．
<gadget id="calculator">8 / 8 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">(1/8) * 100</gadget>
<output>25/2 = around 12.5</output>

<gadget id="calculator">100 / (25/2)</gadget>
<output>8</output>

<result>8</result>