A train 108 m long moving at a speed of 50 km/hr crosses a train 112 m long coming from opposite direction in 6 seconds. What is the speed of the second train ?
Select.
A) 48 km/hr	B) 54 km/hr	C) 66 km/hr	D) 82 km/hr	E) 89 km/hr
Let speed of d second train= xkm/hr   82 km/hristance covered=(108+112)= 
<gadget id="calculator">(108+112)</gadget>
<output>220</output>
220m=0.22km   Time=6sec= 6/3600hr =1/600hr   So   1/600hr= 0.22km/(50+x)   x=82km/hr   answer :82 km/hr
<result>D</result>
A train 108 m long moving at a speed of 50 km/hr crosses a train 112 m long coming from opposite direction in 6 seconds. What is the speed of the second train ?