Grandma Wang used an 11m long fence to build a rectangular chicken pen against the wall. The chicken pen is 5m long, what is the width of the chicken pen?
王奶奶用11m长的篱笆靠墙围起一个长方形的养鸡圈．鸡圈长5m，围成的鸡圈的宽多少m？
<gadget id="calculator">11 - 5</gadget>
<output>6</output>

<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<result>3</result>