A passenger train departs from A to B, and at the same time a freight train departs from B to A. After 10 hours, the bus is still the whole distance (1/7) away from B, and the truck is 55 kilometers away from the midpoint. It is known that the bus travels 18 kilometers more per hour than the truck. How many kilometers is the distance between A and B?
一列客车从甲地出发开往乙地，同时一列货车从乙地出发开往甲地．10个小时后客车距离乙地还有全程的(1/7)，货车超过中点55千米，已知客车每小时比货车多行18千米．甲乙两地的路程是多少千米？
<gadget id="calculator">18 * 10</gadget>
<output>180</output>

<gadget id="calculator">180 + 55</gadget>
<output>235</output>

<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>

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

<gadget id="calculator">1 - (1/7) - (1/2)</gadget>
<output>5/14 = around 0.357143</output>

<gadget id="calculator">235 / (5/14)</gadget>
<output>658</output>

<result>658</result>