Two cars depart from Beijing and Shanghai respectively at the same time. Car A travels 105 kilometers per hour, and car B travels 95 kilometers per hour. They meet each other in about 7 hours. How many kilometers is the distance between Beijing and Shanghai?
两车分别从北京和上海同时相向开出，甲车每小时行105千米，乙车每小时行95千米，约7小时相遇．北京与上海两地相距多少千米？
<gadget id="calculator">105 + 95</gadget>
<output>200</output>

<gadget id="calculator">200 * 7</gadget>
<output>1_400</output>

<result>1_400</result>