A rectangle with an area of 416 square centimeters and a width of 13 centimeters, if its area is to be increased to 576 square centimeters and its length remains the same, how many centimeters must its width be increased?
一个面积是416平方厘米的长方形，宽是13厘米，如果要把它的面积增加到576平方厘米，长不变，宽要增加多少厘米．
<gadget id="calculator">416 / 13</gadget>
<output>32</output>

<gadget id="calculator">576 / 32</gadget>
<output>18</output>

<gadget id="calculator">18 - 13</gadget>
<output>5</output>

<result>5</result>