1.

 Two stations A and B are 200 km apart on a straight line. A train starts from 'A' towards ' B ' at the rate of 10 kmh" 5 hours later another train starts from ' B ' and travels towards 'A' at the rate

A. 5 hrs
B. 10 hrs
C. 15 hrs
D. 20 hrs
Answer» D. 20 hrs


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