Vishwanath
Monday, February 18, 2013
57.How long does a train 110 metres long running at the speed of 72 km / hr take to cross a bridge 132 metres in length ?
A. 9.8 sec B. 12.1 sec
C. 12.42 sec D. 14.3 sec
Answer:
Speed = (72 x 5/18 )m/sec
= 20 m/ sec
Total Distance covered = (110 + 132) m
= 242 m
Required time = (242 / 60) sec
= 12.1 sec
Title : Trains Q57
Description : 57.How long does a train 110 metres long running at the speed of 72 km / hr take to cross a bridge 132 metres in length ? A. 9...
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