Abus leaves at 9 am with a group of tourists. they travel 350 km before they stop for lunch. then they travel an additional 250 km until the end of their trip at 3 pm. what was the average speed of the bus?

Average speed = Distance traveled / time taken

In this case Time taken = Difference in hours between 3 PM and 9 AM

                                        = 6 hours

Total distance traveled = 350 km + 250 km

                                       = 600 kilometers

So average speed = 600/6 = 100 km/hr

Average speed of bus = 27.78 m/s

So the bus's average speed = 27.78 m/s or 100 km/hr.

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