A rectangle has a perimeter of 4.8 meters and its length is three times its width. What is the width of this rectangle?
一个长方形的周长是4.8米，长是宽的3倍．这个长方形的宽是多少米？
<gadget id="calculator">4.8 / 2</gadget>
<output>2.4</output>

<gadget id="calculator">3 + 1</gadget>
<output>4</output>

<gadget id="calculator">2.4 / 4</gadget>
<output>0.6</output>

<result>0.6</result>