A 600 m long train crosses a tree in 60sec, how much time will It take to pass a platform 450 m long?
Answers
A) 288 B) 190 C) 188 D) 188 E) 105

Rationale: "l = s * t s = 600 / 60 s = 10 m / sec . total length ( d ) = 1050 m t = d / s t = 1050 / 10 t = 105 sec answer : e"
Answer: E