A train moves with a speed of 189 kmph. Its speed in metres per second is Choose the correct choice:
A) 60.8  B) 18  C) 30  D) 52.5  E) none

Rationale: "solution speed = 189 kmph = ( 189 x 5 / 18 ) m / sec = 52.5 m / sec . answer d"
Answer: D