Question: A 600 meter long train crosses a signal post in 40 seconds. How long will it take to cross a 3 kilometer long bridge, at the same speed?
Options:
(A) 4
(B) 7
(C) 6
(D) 8
(E) 9 Random thoughts:
user
S = 600/40 = 15 mps
S = 3600/15 = 240 sec = 4 min The final answer: (A).
assistant