Two cars, A and B, depart from A and B at the same time, and B travels 10% of the whole journey every hour. A arrives at the midpoint between A and B 1/3 hour earlier than B. When reaching the midpoint, car A continues to drive forward for another 2.5 kilometers. How many kilometers has car A traveled in total?
甲、乙两辆汽车分别从A、B两地同时相对开出，乙每小时行全程的10%，甲比乙早(1/3)小时到达A、B两地的中点，当乙车到达中点时，甲车又继续向前行驶了2.5千米，这时甲车共行多少千米？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">50 / 100</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">(1/2) / (1/10)</gadget>
<output>5</output>

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

<gadget id="calculator">5 - (1/3)</gadget>
<output>14/3 = around 4.666667</output>

<gadget id="calculator">(1/2) / (14/3)</gadget>
<output>3/28 = around 0.107143</output>

<gadget id="calculator">(3/28) * (1/3)</gadget>
<output>1/28 = around 0.035714</output>

<gadget id="calculator">2.5 / (1/28)</gadget>
<output>70</output>

<gadget id="calculator">70 * (1/2)</gadget>
<output>35</output>

<gadget id="calculator">35 + 2.5</gadget>
<output>37.5</output>

<result>37.5</result>