16) Three bells are ringing continuously at intervals of 30, 36 and 45 .at what time will they ring together again if they ring simultaneously at 5am
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1,1,1 So L.C.M. of 30,36 and 45 is 3×5×3×2÷2=180. So after 180 minutes they ring together Therefore they all ring together at 11:00 a.m. Hope it helps you..
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