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Buses leave town B at 3 pm and every 10 hours after that. [#permalink]
16 Mar 2004, 12:03
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Buses leave town B at 3 pm and every 10 hours after that. Buses leave town C at 4 pm and every 15 hours after that. If the buses follow this schedule begining on Monday, what is the earliest day on which the buses leave at same time?
E) So long as they continue operating in this manner,
they will never leave at the same time.
I just made a few calculations and came to the conclusion that they never meet. Sorry I could not provide a clear cut explaination for this. Usually for these kind of problems, the best method is to find the LCM of the times..but in this case it doesnt seem to work...