The distance between A and B is 540 kilometers. Two cars, passenger and freight, drive from the two places at the same time and meet each other after 5 hours. It is known that the speed of the passenger car is 50 kilometers per hour, how many kilometers per hour does the truck travel?
甲乙两地相距540千米，客、货两车同时从两地相对开出，经过5小时相遇．已知客车的速度是每小时50千米，货车每小时行多少千米？
<gadget id="calculator">540 / 5</gadget>
<output>108</output>

<gadget id="calculator">108 - 50</gadget>
<output>58</output>

<result>58</result>