Answer: [tex]4:39, 5:03[/tex]
Step-by-step explanation:
Given
The yellow line leaves the station every 6 min
The red line leaves the station every 8 min
They both leave at [tex]4:15[/tex]
Both trains meet again after, LCM(6,8)=24 min
i.e. at
[tex]4:15+24=4:39\\4:39+24=5:03[/tex]