A train 280 m long, running with a speed of 63 km / hr will pass a tree in  Answers
A) 12 sec B) 15 sec C) 16 sec D) 20 sec E) None
Sol.   Speed = (63 x 5/18) m/sec.   = 35 /2 m / sec.   Time taken = (280 x 2/35) sec = 16 sec   Answer 16 sec
<result>C</result>
A train 280 m long, running with a speed of 63 km / hr will pass a tree in