Question 895833
How fast do the buses together travel?  74+76kph, or 150kph.  They only need to travel 15k to meet.  15k/150kph= 1/10th of an hour.  An hour is 60 minutes long, so 1/10 of that time would be 6 minutes to meet.
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I'm sure your instructor wants the meet time.  The PASS time would have to include the length of the buses and you'd add seconds ;-)