Two trains, A and B, are traveling opposite each other. Train A travels 75 kilometers per hour, and train B travels 69 kilometers per hour. One hour after car A leaves, car B leaves, and two more hours later the two cars meet. How many kilometers is the length of the railway between A and B?
甲、乙两列火车从两地相对行驶，甲车每小时行75千米，乙车每小时行69千米．甲车开出1小时后，乙车才开出，再过2小时两车相遇．甲乙两地的铁路长多少千米？
<gadget id="calculator">75 + 69</gadget>
<output>144</output>

<gadget id="calculator">144 * 2</gadget>
<output>288</output>

<gadget id="calculator">288 + 75</gadget>
<output>363</output>

<result>363</result>