The distance between A and B is 150 km. A passenger car takes 2 hours to travel the whole journey (2/3), if the speed remains the same, how many hours will it take for the rest of the journey?
甲、乙两地相距150km．一辆客车用了2小时行全程的(2/3)，如果速度不变，余下的路程还要行几小时？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

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

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

<gadget id="calculator">150 * (1/3)</gadget>
<output>50</output>

<gadget id="calculator">(1/3) / 50</gadget>
<output>1/150 = around 0.006667</output>

<gadget id="calculator">150 * (1/150)</gadget>
<output>1</output>

<result>1</result>