A passenger car and a truck depart from places A and B at the same time and drive towards each other. After 4 hours, the bus is still 1/6 of the distance from point B. The truck exceeds 40 kilometers from the midpoint. It is known that the bus It travels 25 kilometers per hour more than the truck, what is the distance between A and B?
一辆客车和一辆货车分别从甲、乙两地同时出发，相向而行，4小时后，客车距乙地还有全程的(1/6)，货车超过中点40千米，已知客车比货车每小时多行25千米，甲乙两地的路程是多少？
<gadget id="calculator">25 * 4</gadget>
<output>100</output>

<gadget id="calculator">100 + 40</gadget>
<output>140</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 - (1/6)</gadget>
<output>5/6 = around 0.833333</output>

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

<gadget id="calculator">(5/6) - (1/2)</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">140 / (1/3)</gadget>
<output>420</output>

<result>420</result>