How long does a train 110 m long running at the speed of 72 km/hr takes to cross a bridge 112 m ...
How long does a train 110 m long running at the speed of 72 km/hr takes to cross a bridge 112 m length?
Answer/Solution
11.1 sec
Steps/Work
Speed = 72 * 5/18 = 20 m/sec
Total distance covered = 110 + 112 = 222 m.
Required time = 222/20 = 11.1 sec.
Answer:D
Total distance covered = 110 + 112 = 222 m.
Required time = 222/20 = 11.1 sec.
Answer:D