The distance between A and B is 480 kilometers. After a car has traveled (1/3), the remaining distance will take 4 hours. How many kilometers does it travel per hour on average?
甲乙两地480千米，一辆汽车行驶了(1/3)后，剩下的路程还要4小时，平均每小时行驶多少千米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(2/3) / 4</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">480 * (1/6)</gadget>
<output>80</output>

<result>80</result>