Speed of trains A and B are 29 & 56 km/hr travelling in the same direction. Man in slower train passes in 16 min.
Find the length of the train.?	Answers:
A) 100 m  B) 110 m  C) 120 m  D) 220 m  E) 130 m
let length of 2 trains = 2x   Relative speed= 56-29= 
<gadget id="calculator">56-29</gadget>
<output>27</output>
27 km/hr= (27*5)/18 m/sec   = 15/2 m/sec   so, 2x/16=15/2   2x=120   ANSWER:120 m
<result>C</result>
Speed of trains A and B are 29 & 56 km/hr travelling in the same direction. Man in slower train passes in 16 min.
Find the length of the train.?