A Train requires 8 seconds to pass a pole while it requires 18 seconds to cross a stationary train which is 400 mtrs long. Find the speed of the train.\nOptions:\n(A) 144 kmph\n(B) 124 kmph\n(C) 134 kmph\n(D) 150 kmph\n(E) 160 kmph
Let's think step by step below.
(A)
In 8s the train crosses the pole and in 18 sec the train crosses one more stationary train\nIn 10 sec the train travels a distance of 400 mtrs\nSpeed = 400/10 = 40 m/s = 40 (3600/1000) = 40 * 18/5 = 144 kmph.

Therefore, the answer is (A)