Driving from city A to city B, the original plan was to arrive at 11:30 noon, but the speed increased by 1/7 after departure, and arrived at 11 o’clock. When returning the next day, we set off from city B at the same time and drove at the same speed After driving 120 kilometers, increase the speed by 1/6, and arrive at city A at exactly 11:10. How many kilometers is the distance between city A and city B?
从A市开车去B市，原计划中午11：30到达，但出发后车速提高了7分之1，11点钟就到了，第二天返回时，同一时间从B市出发，按原速行驶了120千米之后，再将车速提高6分之1，到达A市恰好11：10，A市、B市两市间的路程是多少千米．
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">0.5 / (1/8)</gadget>
<output>4</output>

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

<gadget id="calculator">7 / 1</gadget>
<output>7</output>

<gadget id="calculator">(1/3) * 7</gadget>
<output>7/3 = around 2.333333</output>

<gadget id="calculator">4 - (7/3)</gadget>
<output>5/3 = around 1.666667</output>

<gadget id="calculator">120 / (5/3)</gadget>
<output>72</output>

<gadget id="calculator">72 * 4</gadget>
<output>288</output>

<result>288</result>