A train of length 250 m crosses a bridge of length 150m in 20 seconds. What is the speed of train? Select the correct option
A) 33
B) 27
C) 25
D) 22
E) 72
Sol : (length of train+ length of bridge) = speed of train x Time   (250+150) = 20 x Speed   Speed = 400/20= 
<gadget id="calculator">400/20</gadget>
<output>20</output>
20 m/s=72 km/h   ANSW72R=72
<result>E</result>
A train of length 250 m crosses a bridge of length 150m in 20 seconds. What is the speed of train?