Mathematics, 10.05.2021 20:10 monk68

A plane flew from Smithtown to Johnsville and back. The duration of the trip there was 1 hour less than the duration of the trip back. The average speed on the trip there was 300 mph. The average speed on the trip back was 280 mph. How many hours did the trip take?

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A plane flew from Smithtown to Johnsville and back. The duration of the trip there was 1 hour less t...

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