passenger car and a truck set off from Nanjing to Xuzhou at the same time. The speed of the passenger car is 95 km/h and the speed of the truck is 76 km/h. After three hours, how many kilometers are there between the passenger car and the truck?
一辆客车和一辆货车同时从南京出发开往徐州．客车的速度是95千米/时，货车的速度是76千米/时．三小时后，客车和货车相距多少千米？
<gadget id="calculator">95 - 76</gadget>
<output>19</output>

<gadget id="calculator">19 * 3</gadget>
<output>57</output>

<result>57</result>