A 1200 m long train crosses a tree in 120 sec, how much time will I take to pass a platform 1100 m long?	Choose one:
A) 200 sec
B) 230 sec
C) 167 sec
D) 197 sec
E) 179 sec

Rationale: "l = s * t s = 1200 / 120 s = 10 m / sec . total length ( d ) = 2300 m t = d / s t = 2300 / 10 t = 230 sec answer : b"
Answer: B