The distance between Longnan and Ganzhou is 126 kilometers. A truck and a bus are driving opposite each other at the same time. After 1.2 hours, the two cars meet. The truck travels 50 kilometers per hour. How many kilometers per hour does the bus travel?
龙南到赣州相距126千米，一辆货车和一辆客车同时从两地相对行驶，1.2小时后两车相遇，货车每小时行50千米，客车每小时行多少千米？
<gadget id="calculator">126 / 1.2</gadget>
<output>105</output>

<gadget id="calculator">105 - 50</gadget>
<output>55</output>

<result>55</result>