The railway from Tianjin to Jinan is 358 kilometers long. A train of passenger trains and a train of freight trains depart from the two places at the same time and travel toward each other. They meet after 2 hours. It is known that the passenger train travels 105 kilometers per hour. How many kilometers per hour does the freight train travel?
天津到济南的铁路长358千米，一列客车和一列货车分别从两地同时出发相向而行，2小时后相遇，已知客车每小时行105千米，货车每小时行多少千米？
<gadget id="calculator">358 / 2</gadget>
<output>179</output>

<gadget id="calculator">179 - 105</gadget>
<output>74</output>

<result>74</result>