A and B start from A and B respectively and walk toward each other. When they meet, A travels 55% of the whole journey and 3.5 kilometers more. How many kilometers have you traveled?
甲、乙两人分别从A、B两地出发相向而行，相遇时甲行了全程的55%还多3.5千米，乙正好走了甲所行路程的(1/2)，相遇时乙行了多少千米？
<gadget id="calculator">1 + 2</gadget>
<output>3</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">55 / 100</gadget>
<output>11/20 = around 0.55</output>

<gadget id="calculator">(2/3) - (11/20)</gadget>
<output>7/60 = around 0.116667</output>

<gadget id="calculator">3.5 / (7/60)</gadget>
<output>30</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">30 * (1/3)</gadget>
<output>10</output>

<result>10</result>