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2 stations are 60 km apart. When a train starts from X, at the same time a train starts from Y.Trains start from X towards Y and from Y towards X every 10 mins. The trains have a constant speed of 60 km/hr. Once a train reaches X or Y it halts there for 20 mins and then turn back . ZFind the minimum trains required to run the service ?PLEASE SHOW ME HOW TO SOLVE THIS SUM BY A PROPER METHOD. I HAVE GOT THE ANSWER TO BE 16 BY DIAGRAMATIC REPRESENTATION.
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