A train leaves Delhi at 6.00 a.m. and reaches Agra at 10.00 a.m. Another train leaves Agra at 8.00 a.m. and reaches Delhi at 11.30 a.m. At what time do the two trains cross each other if the distance between Delhi and Agra is 200 km?
Solution(By Examveda Team)
Average speed of train leaving Delhi = 200/4 = 50 km/hrAverage speed of train leaving Agra = 200×2/7 = 400/7 km/hr
By the time the other train starts from Agra, the first train had travelled 100 km
Therefore, the trains meet after:
200/(50+(400/7)) = 14/15 hr
= 14/15 × 60 = 56 minutes
Hence they meet at 8:56 am
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