A train of passenger cars and a train of freight trains start at the same time from places A and B, which are 460 kilometers apart, travel toward each other, and meet each other in 2 hours. It is known that the passenger car travels 120 kilometers per hour, how many kilometers per hour does the truck travel?
一列客车和一列货车从相距460千米的甲、乙两地同时出发，相向而行，2小时相遇．已知客车每小时行驶120千米，求货车每小时行多少千米？
<gadget id="calculator">460 / 2</gadget>
<output>230</output>

<gadget id="calculator">230 - 120</gadget>
<output>110</output>

<result>110</result>