SOLUTION: TV1 and TV2 are television channels both showing films that Start at 8:30 PM. TV1 puts on advertisemeants every 10 minutes after the start of a film. TV2 to puts on Advertisements

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Question 1116913: TV1 and TV2 are television channels both showing films that Start at 8:30 PM. TV1 puts on advertisemeants every 10 minutes after the start of a film. TV2 to puts on Advertisements every 15 minutes after the start of a film.
If the shortest film ends after two hours, how many times (during the films) will advertisements appear on both channels at the same time?
Answer by ikleyn(52794) About Me  (Show Source):
You can put this solution on YOUR website!
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HINT.  The advertisements are at the same time (simultaneously) every 30 minutes.


Using this hint, answer the problem question on your own.