A man started running at a distance of 225 metre from the train. If the speed of the man is 6 km/h, then how much time should the train wait so that the man will be just able to catch it ?  Answers:
A) 2 1⁄4 min
B) 3 min
C) 4 1⁄4 min
D) 4 1⁄2 min
E) None of these
Time = 225/6×518 = 135 sec = 21⁄4 min.   2 1⁄4 minnswer 2 1⁄4 min
<result>A</result>
A man started running at a distance of 225 metre from the train. If the speed of the man is 6 km/h, then how much time should the train wait so that the man will be just able to catch it ?