A Train T1 starts from Ahmedabad to Mumbai at 7 am and reaches at 12 noon. A second train T2 starts at 7 am from Mumbai reaches Ahmedabad at 1 pm. When did the two train cross each other ?
Answer with explanationAnswer: Option C
Let the distance be x between the two stations.
Train T1 takes 5 hours to reach Mumbai.
Train T2 takes 6 hours to reach Ahemedabad.
Relative speed of both the train will be added = x/5 + x/ 6 = 11x/30
Time taken = x/11x/30 = 30/11
or, (30 X 60 )/11 =~ 2.43 hours
so 7 + 2.43 = 9.43 am
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