A 1100 m long train crosses a tree in 110 sec, how much time will It take to pass a platform 700 m long? Choose the correct choice from the following:  A) 288  B) 190  C) 188  D) 180  E) 12

Rationale: l = s * t s = 1100 / 110 s = 10 m / sec . total length ( d ) = 1800 m t = d / s t = 1800 / 10 t = 180 sec answer : d
Answer: D