Physics Question pls help!!!?

During a trip, a bus travels 11km with an average velocity of 21m/s, but then travels 1.0km at a smaller velocity of 4.2m/s, due to the presence of highway construction. Determine the average velocity of the bus for the entire trip. its prob an easy question but i cant think right now cause i havent done pysics... show more During a trip, a bus travels 11km with an average velocity of 21m/s, but then travels 1.0km at a smaller velocity of 4.2m/s, due to the presence of highway construction. Determine the average velocity of the bus for the entire trip.

its prob an easy question but i cant think right now cause i havent done pysics in a while pls help
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