The width of a rectangle is 12.5% of its length. If the width is increased by 6 cm, the rectangle becomes a square. What is the perimeter of the original rectangle in cm?
一个长方形的宽是长的12.5%，如果宽增加6厘米，这个长方形就变成正方形，原来长方形的周长是多少厘米．
<gadget id="calculator">12.5 / 100</gadget>
<output>0.125</output>

<gadget id="calculator">1 - 0.125</gadget>
<output>0.875</output>

<gadget id="calculator">6 / 0.875</gadget>
<output>6.857143</output>

<gadget id="calculator">6.857143 * 0.125</gadget>
<output>0.857143</output>

<gadget id="calculator">6.857143 + 0.857143</gadget>
<output>7.714286</output>

<gadget id="calculator">7.714286 * 2</gadget>
<output>15.428572</output>

<result>15.428572</result>