Consider the question. A train 490 m long, running with a speed of 63 km/hr will pass a tree in?
Options:
(A) 18 sec
(B) 16 sec
(C) 76 sec
(D) 15 sec
(E) 28 sec
What is the step-by-step reasoning process to arrive at the answer: (E)?
Speed = 63 * 5/18 = 35/2 m/sec
Time taken = 490 * 2/35 = 28 sec