Train A takes 45 minutes more than train B to travel a distance of 450
Right Answer is: C
Let train B takes t min, so does train A take (t + 45)min
Due to engine failure train B takes 30 min more than Train A,
so now train B takes (t + 75) minutes to complete the journey.
Let the original speed of train B be v.
After the reduction in the speed =
From equ. (i) and (ii) we get
4t/3 = t+75
t/3 = 75
t = 225 min
So, train A taken (t + 45) = 225 + 45 = 270 min