There is a rope, the length measured after being folded in half 3 times is 5 cm, what is its original total length in cm?
有一根绳子，对折3次后量得的长度是5厘米，那么它原来的全长是多少厘米．
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">5 / (1/8)</gadget>
<output>40</output>

<result>40</result>