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(Solved): 13. Maria has two electronic beepers. One of them beeps every 4 seconds; the other beeps e ...
13. Maria has two electronic beepers. One of them beeps every 4 seconds; the other beeps every 9 seconds. If they are turned on at exactly the same time, how many times during the next hour will both beepers beep at the sarre inic?
Expert Answer
Given that, Maria has two electronic beepers and one of them beeps every 4 seconds and the other beeps every 9 second