Answer:
Nonstop ride is 12 hours long.
Step-by-step explanation:
With stopping time taken by train = 18 hours.
Without stopping time is reduced by 1/3.
Time for non stop ride = Time for stopping ride - (Time for stopping ride/3)
= 2 x Time for stopping ride/3
= 2 x 18 /3 = 12 hours.
So, nonstop ride is 12 hours long.