The distance between A and B is 273km. A bus and a truck drive toward each other at 9:00 and meet at 11:30. The bus travels 60 km per hour. How many kilometers does the truck travel per hour?
甲乙两地相距273km，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">273 / 2.5</gadget>
<output>109.2</output>

<gadget id="calculator">109.2 - 60</gadget>
<output>49.2</output>

<result>49.2</result>