A car can travel 80.8 kilometers per hour, which is 19.78 kilometers faster than a truck. How many kilometers per hour can the truck travel?
小轿车每时能行80.8千米，比货车快19.78千米．货车每时能行多少千米？
<gadget id="calculator">80.8 - 19.78</gadget>
<output>61.02</output>

<result>61.02</result>