and B are walking toward each other from AB at the same time. A walks the whole distance (5/11) and meets B. It is known that A walks 4.5 kilometers per hour, how many kilometers does B walk per hour?
甲乙两人同时分别从AB两地相向而行，甲走到全程(5/11)的地方与乙相遇．已知甲每小时走4.5千米，乙每小时走多少千米？
<gadget id="calculator">5 / 11</gadget>
<output>5/11 = around 0.454545</output>

<gadget id="calculator">1 - (5/11)</gadget>
<output>6/11 = around 0.545455</output>

<gadget id="calculator">(5/11) / (6/11)</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">1 / (5/6)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">4.5 * (6/5)</gadget>
<output>5.4</output>

<result>5.4</result>