25, 5, 1, 0.2, □, 0.008, according to the law, how much should be filled in the □ of this group of numbers
25、5、1、0.2、□、0.008，根据规律，这组数的□里应填多少
<gadget id="calculator">0.2 / 5</gadget>
<output>0.04</output>

<result>0.04</result>