A rectangle has a width of 1.5 cm and a length 10 times its width. What is the perimeter of the rectangle in centimeters?
一个长方形的宽是1.5厘米，长是宽的10倍．长方形的周长是多少厘米？
<gadget id="calculator">1.5 * 10</gadget>
<output>15</output>

<gadget id="calculator">15 + 1.5</gadget>
<output>16.5</output>

<gadget id="calculator">16.5 * 2</gadget>
<output>33</output>

<result>33</result>