During the Sichuan Ya'an Earthquake Rescue Operation, Uncle Li worked 54 hours in the front line in three days. Based on this calculation, how many hours did he work in a week?
在四川雅安地震救助行动中，李叔叔三天在一线工作54小时，照这样计算，他一个星期一共工作了多长时间？
<gadget id="calculator">54 / 3</gadget>
<output>18</output>

<gadget id="calculator">18 * 7</gadget>
<output>126</output>

<result>126</result>