Question 15
Town A and Town B are 3600 m apart. At 8:00:00 AM, two dogs start running towards each other from A and B at 350 m/min and 450 m/min, respectively. After 1 minute they turn around and run for 2 minutes, then turn again and run for 3 minutes, and so on, increasing each run by 1 minute before turning. At what time do they meet?