A train traveled from one city to another city in 4 hours at a speed of 70 mph. The retum trip was made in 5 hours. Find the speed for the return trip.

56miles/hr

Step-by-step explanation:

Given parameters:

Time taken for the to travel  = 4hrs

Speed of the train  = 70mph

  From this data, let us find the distance of the trip;

Distance  =Speed x time

  Therefore, insert the parameters;

          Distance  = 70mph x 4hr = 280miles

Now;

  Return trip took, 5hrs,

Speed  = ?

  Speed  =  

Insert the parameters and solve;

     Speed  =   = 56miles/hr