A passenger train and a freight train depart from A to B at the same time. When the passenger car traveled (1/3) of the whole journey, the truck traveled 20% of the whole journey. According to this calculation, when the bus arrives at B, the truck is still 30 kilometers away from B. How many kilometers are there between A and B?
一列客车和一列货车同时从甲地出发开往乙地．当客车行了全程的(1/3)时，货车行了全程的20%．照这样计算，客车到达乙地时，货车离乙地还有30千米．甲乙两地相距多少千米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(1/3) / (1/5)</gadget>
<output>5/3 = around 1.666667</output>

<gadget id="calculator">1 / (5/3)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 - (3/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">30 / (2/5)</gadget>
<output>75</output>

<result>75</result>