1]How long does a train 110 mts long running at the speed of 132 km/hr take to cross a bridge 165 mts in length?
a]7.5 s b]7.4 s c]7.3 s d]7.2 s

solution
speed of train = d/t = (132*1000)/3600 m/s = 110/3 m/s
total distance covered = (110+165) = 275 m
time taken = [110/3] /275 = 7.5 s

2]How long does a train 110 mts long running at the speed of 72 km/hr take to cross a bridge 132 mts in length?
a]12.1 s b]12.4 s c]12.3 s d]12.2 s

3]A train is moving at a speed of 45 km/hr.If the lenght of the train is 360 mts.How long will it take to cross a bridge 140 mts in length?
a]40 s b]70 s c]30 s d] 20 s

4]How long does a train 110 mts long running at the speed of 36 km/hr take to cross a bridge 132 mts in length?
a]24.2 s b]24.4 s c]24.3 s d]24.2 s