A train moves with a speed of 72 kmph. Its speed in metres per second is
Choose the correct answer:	A) 10.8	B) 18	C) 30	D) 20	E) None
Solution   Speed	= 72 Kmph   = (72 x 5/18)m/sec   = 20 m/sec.   Answer 20
<result>D</result>
A train moves with a speed of 72 kmph. Its speed in metres per second is