After a rope is folded in half, folded in half, and folded in half again, each piece is 25 meters long. How long is the rope in meters?
一根绳子对折、对折、再对折后，每段长25米，这根绳子长多少米？
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">25 / (1/8)</gadget>
<output>200</output>

<result>200</result>