A train takes 10 sec to pass a signal post and covers a distance of 10 km in 15 min. Find the length of train? Choose the correct answer:
A) 100.1 m B) 223.1 m C) 111.1 m D) 120.3 m E) 133.4 m

Rationale: explanation : we know , speed = distance / time speed = 10 / 50 x 60 = 40 x 5 / 18 m / sec = 11.1 m / sec length of train = ( speed x time ) = ( 11.11 x 10 ) = 111.1 m answer is c
Answer: C