It takes (1/25) seconds for the automatic detector to detect one bottle, how many seconds does it take to detect 100 bottles.
自动检测仪检测一个瓶子用时(1/25)秒，检测100个瓶子需要多少秒．
<gadget id="calculator">1 / 25</gadget>
<output>1/25 = around 0.04</output>

<gadget id="calculator">(1/25) * 100</gadget>
<output>4</output>

<result>4</result>