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Two trains are running towards each other at the rate of 42kmph and 30kmph.the length of the train is 120m and 80m respectively. In what time they will cross each other from the moment they meet?
  • a)
    1 sec     
  • b)
    9 sec
  • c)
    6 sec   
  • d)
    10 sec
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Two trains are running towards each other at the rate of 42kmph and 30...
D = 120 + 80 = 200 M
S = 72 km/h 

T = 20/20 = 1 sec
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Two trains are running towards each other at the rate of 42kmph and 30kmph.the length of the train is 120m and 80m respectively. In what time they will cross each other from the moment they meet?a)1 sec b)9 secc)6 secd)10 secCorrect answer is option 'A'. Can you explain this answer?
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