The distance between A and B is 275 km. A bus and a truck drive toward each other from A and B at 9:00, and meet at 11:30. The bus travels 60 km per hour. How many kilometers per hour does the truck travel?
甲、乙两地相距275km，一辆客车和一辆货车9：00分别从甲乙两地相向而行，11：30相遇客车每小时行驶60km，货车每小时行驶多少千米？
<gadget id="calculator">275 / 2.5</gadget>
<output>110</output>

<gadget id="calculator">110 - 60</gadget>
<output>50</output>

<result>50</result>