Recall your d = rt, distance = rate * time
if say train B has a speed of "r", then A has a speed of "r-14".
now, they each travelled those miles in the same time, say "t" hours.
how fast is Train A? well, r - 14.
if say train B has a speed of "r", then A has a speed of "r-14".
now, they each travelled those miles in the same time, say "t" hours.
how fast is Train A? well, r - 14.