SOLUTION: A train leaves New York at 9 A.M and travels east at a constant speed of x mph. If another train leaves New York at 10 A.M and travels east, at what constant rate of speed will th

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Question 413915: A train leaves New York at 9 A.M and travels east at a constant speed of x mph. If another train leaves
New York at 10 A.M and travels east, at what constant rate of speed will the second train have to travel in
order to first catch train at exactly 1:30 P.M.?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

Letting y represent constant rate of speed of the second train 

Question states***  Note:  D = r*t and distances the same for both trains

 4.5hr*x = 3.5hr*y

Solving for y

 4.5x/3.5 = y

  (9/7)x  = y