Vishwanath
Monday, February 18, 2013
59.In what time will a train 100 metres long cross an electric pole, if its speed be 144 km/hr ?
A. 2.5 sec B. 4.25 Sec
C. 5 sec D. 12.5 sec
Answer:A
Speed = (144 x 5 /18) m/sec
= 40 m / sec
Time taken = (100 /40) sec
= 2.5 sec.
Title : Trains Q59
Description : 59.In what time will a train 100 metres long cross an electric pole, if its speed be 144 km/hr ? A. 2.5 sec B. 4.25 Sec ...
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