A dog is at point A, and Xiao Ming is at point B. They move towards each other. Xiao Ming walks 50 meters per minute, and the dog runs 200 meters per minute. After meeting Xiao Ming, the dog runs back to point A, and then runs towards Xiao Ming. Run back to point A after meeting... May I ask how many meters did the dog run when Xiao Ming walked for 5 minutes?
一只狗在A点，小明在B点，他们互相朝对方前进，小明每分钟走50米，狗每分钟跑200米，狗遇到小明后又往回跑到A点，再朝小明跑，遇到后再跑回A点…请问小明走了5分钟的时候，狗跑了多少米？
<gadget id="calculator">200 * 5</gadget>
<output>1_000</output>

<result>1_000</result>