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A train 360 m long is running at a speed of 45 kmph.In what time will it pass a bridge 140 m long?
a)40 sec b)42 sec c)45 sec d)48 sec

Read Solution (Total 2)

speed of the train 45* 5/18 = 25/2 m/sec
time = (360+140)/25/2
= 500*2/25
=40sec
9 years agoHelpfull: Yes(1) No(0)

train+bridge= 360+140=500m
speed 45*5/18=25/2
t=d/s = 500*2/25=40sec
9 years agoHelpfull: Yes(1) No(0)

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