A train moves with a speed of 108 kmph. Its speed in metres per second is :  Choose the correct choice from the following options
A) 10.8 B) 18 C) 30 D) 38.8 E) none of these

Rationale: "explanation : 108 kmph = ( 108 x 5 / 18 ) m / sec = 30 m / s . answer : c"
Answer: C