A person takes a trip, driving with a constant of 89.5 Km/h, except for a 22.0-min rest stop.
If the person's average speed is 77.8 Km/h,
(a) how much time is spent on the trip and
(b) how far does the person travel?
This is problem 13, Chapter 2 from Serway Physics for scientists and engineers Volume 1 9th edition
The Attempt at a Solution
Is my solution correct?