highway is 336km long. A bus takes 3.2 hours to complete the journey, and a truck takes 4.8 hours to complete the journey. How much faster is the passenger car than the truck?
一条高速路长336km．一辆客车3.2小时行完全程，一辆货车用4.8小时行完全程．客车的速度比货车的速度快多少？
<gadget id="calculator">1 / 3.2</gadget>
<output>0.3125</output>

<gadget id="calculator">1 / 4.8</gadget>
<output>0.208333</output>

<gadget id="calculator">0.3125 - 0.208333</gadget>
<output>0.104167</output>

<gadget id="calculator">0.104167 / 0.208333</gadget>
<output>0.500002</output>

<result>0.500002</result>