Length of train is 130 meters and speed of train is 45 km hour This train can pass a bridge in 30 se...........

Quantitative Aptitude ( CCS) Problems on trains

Length of train is 130 meters and speed of train is 45 km/hour. This train can pass a bridge in 30 seconds, then find the length of the bridge.

230 meters

235 meters

240 meters

245 meters

Let the length of bridge is X [as always we do :)]
Speed of train is = 45*(5/18) m/sec = 25/2 m/sec
Time = 30 seconds

Total distance = 130+x
We know Speed = distance/time
so, 130 + x /30 = 25/2

2(130+x) = 750

x = 245

So length of the bridge is 245 meters

Hence, option 4 is the correct answer.

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