1.

 Two trains started at the same time, one from A to B and the other from B to A . If they arrived at B and A respectively 4 hours and 9 hours after they passed each other the ratio of the speeds of the

A. 14.4 sec
B. 15.5 sec
C. 18.8 sec
D. 20.2 sec
Answer» B. 15.5 sec


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