15 seconds after the buzzer, the teacher still has 135 meters to go to the finish line. 32 seconds after he left the starting line, the teacher has only 50 meters more to run. 22 seconds after the buzzer, Usain is 189 meters from the finish line. 36 seconds after the buzzer, he is 42 meters from the finish line. Both people are running at a constant speed. determine the outcome of the race. explain your process.
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