A train departs from Beijing to Guangzhou. It takes 10 hours for the train to travel the whole way (5/11). How long does it take from Beijing to Guangzhou?
一列火车从北京开往广州，火车行驶了全程的(5/11)用了10时，从北京到广州需要多长时间？
<gadget id="calculator">5 / 11</gadget>
<output>5/11 = around 0.454545</output>

<gadget id="calculator">10 / (5/11)</gadget>
<output>22</output>

<result>22</result>