Xuexue and Sisi set off from A and B respectively at the same time and head towards each other. Xuexue walked 50 meters per minute, Sisi walked 30 meters per minute, and they met after 5 minutes of departure. So what is the distance between AB and AB?
学学和思思分别从A、B两地同时出发，相向而行．学学每分钟走50米，思思每分钟走30米，出发5分钟后两人相遇．那么AB两地相距是多少米？
<gadget id="calculator">50 + 30</gadget>
<output>80</output>

<gadget id="calculator">5 * 80</gadget>
<output>400</output>

<result>400</result>