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2013 AMC 8 Question 7

AMC8 · 2013 AMC 8

Question 7

Trey and his mom stopped at a railroad crossing to let a train pass. As the train began to pass, Trey counted $6$ cars in the first $10$ seconds. It took the train $2$ minutes and $45$ seconds to clear the crossing at a constant speed. Which of the following was the most likely number of cars in the train?
  1. $ \ 60 $
  2. $ \ 80 $
  3. $ \ 100 $
  4. $ \ 120 $
  5. $ \ 140 $