The E train leaves station A moving at a constant speed, and passes by stations B and C, in this order. It takes the E train 7 hours to reach station B, and 5 additional hours to reach station C. The distance between stations A and B is m kilometers longer than the distance between stations B and C. What is the distance between stations A and C in terms of m? Select the correct option
A) 1.8m	B) 6m	C) 7m	D) 9m	E) 12m
The reason it is failing for you is that you chose incorrect numbers. If the question says E it took 7 hrs to reach from A to B and 5 hrs to reach from B to C at a constant speed. It shows that distance AB and BC should be in ratio of 7/5.   If you take such numbers you can solve problem.   A6m = 7, 6mC=5   Therefore   A6m-6mC = 2   6mut from question, A6m-6mC =m   =&gt; m=2   Now total distance = A6m+6mC= 12   Substitute 12 to get answer in terms of m   Total distance 6 +6= 
<gadget id="calculator">6 +6</gadget>
<output>12</output>
12   Substitute 12 to get answer in terms of m   Total distance=12 =6m   Ans 6m
<result>B</result>
The E train leaves station A moving at a constant speed, and passes by stations B and C, in this order. It takes the E train 7 hours to reach station B, and 5 additional hours to reach station C. The distance between stations A and B is m kilometers longer than the distance between stations B and C. What is the distance between stations A and C in terms of m?