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A train ‘A’ of 180 metres is running at the rate of 72 km/hr. Another train ‘B’ of 120 metres is coming from opposite direction is the rate of 108 km/hr. How long will they take to cross one another ?
  • a)
    24 sec
  • b)
    12 sec
  • c)
    6 sec
  • d)
    30 sec
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
A train ‘A’ of 180 metres is running at the rate of 72 km/...
Speed of the train A = 72 * 5 /18 = 20 m/s
Speed of train B = 108 * 5/18 = 30 m/s
Total time to cross each other = total distance / total speed
= 300/50 = 6 seconds
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A train ‘A’ of 180 metres is running at the rate of 72 km/hr. Another train ‘B’ of 120 metres is coming from opposite direction is the rate of 108 km/hr. How long will they take to cross one another ?a)24 secb)12 secc)6 secd)30 secCorrect answer is option 'C'. Can you explain this answer?
Question Description
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