A 100 cm long iron wire is used to form a rectangle whose length is 1.5 times its width. What is the width of this rectangle in cm?
用一根长100厘米的铁丝围成一个长方形，长是宽的1.5倍，这个长方形的宽是多少厘米？
<gadget id="calculator">1 + 1.5</gadget>
<output>2.5</output>

<gadget id="calculator">100 / 2 / 2.5</gadget>
<output>20</output>

<result>20</result>