Question

two airport shuttle buses arrive at a subway station at 7:30 am if one airport shuttle bus arrives every 8 minutes and the other airport shuttle bus arrives every 10 minutes, what is the next time they will arrive at the subway together?

Answer 1

8:00? I'm probably wrong so don't even trust this

Answer 2

8:10 am

8 minutes*5 arrivals=40 minutes
10 minutes*4 arrivals= 40 minutes

7:30 + 40 minutes = 8:10