Question 924602:  The locomotive car of a train is 40 feet long. Bill wants to build a model train scaled down by a factor of L = 1/110. How long should his model locomotive car be? Give your answer in inches. 
 
part 2:
 
If a full size train travels 55 miles in one hour, how far should Bill's model train travel in one hour? Give your answer in yards. 
 Answer by TimothyLamb(4379)      (Show Source): 
You can  put this solution on YOUR website! 40 feet * 12 inches/foot = 480 in 
model length = 480 / 110 = 4.36 inches 
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55 miles/hour * 5280 feet/mile * 1/3 yard/foot = 96800 yards/hour 
model speed = 96800 / 110 = 880 yards/hour 
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