To make a cuboid frame with a bottom perimeter of 24dm and a height of 5dm, at least how many decimeters of iron wire are needed?
要做一个底面周长24dm、高5dm的长方体框架，至少需要多少分米长的铁丝？
<gadget id="calculator">24 * 2</gadget>
<output>48</output>

<gadget id="calculator">5 * 4</gadget>
<output>20</output>

<gadget id="calculator">48 + 20</gadget>
<output>68</output>

<result>68</result>