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MAA AMC
AMC 8
2013 AMC 8
7
7
Part of
2013 AMC 8
Problems
(1)
2013/8/7/Cars of a train
Source:
11/27/2013
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?
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60
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80
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C
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100
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D
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120
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E
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140
<span class='latex-bold'>(A)</span>\ 60 \qquad <span class='latex-bold'>(B)</span>\ 80 \qquad <span class='latex-bold'>(C)</span>\ 100 \qquad <span class='latex-bold'>(D)</span>\ 120 \qquad <span class='latex-bold'>(E)</span>\ 140
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80
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100
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120
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140
AMC 8
AMC