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At 9:00 a. m. the train Surmal left station and two hours later the train. Titas left the same station on a parallel track in the same direction. If Surma averaged 60 kilometers per hour and Titas averaged 75 kilometers per hour, at what time did Titas pass Surma?

Correct Answer: 7:00 p.m.
From given data, 60(x) = 75(x - 2) , x is total time taken 60x = 75x - 150 15x = 150 x = 10 so total time taken is 10 hrs i.e at 7pm  

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