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Note that the total distance travelled between the two trains must equal the distance between the two cities. Distance = Rate × Time Therefore d = r1 t1 + r2 t2. Let t2 = Time travelled by the second train. Let t1 = Time travelled by the first train alone + Time travelled with second train = 0.73333333333333 + t2 d = r1 (0.73333333333333 + t2 ) + r2 t2 2938.6 = 69 (0.73333333333333 + t2 ) + 83 t2 2938.6 = 50.6 + 69 t2 + 83 t2 2888 = 152 t2 t2 = 19 help me solve this ?

 
 Jan 28, 2015

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