Three balls ring at intervals of 15, 30 and 45minutes respectively. At – McqOptions

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1.	Three balls ring at intervals of 15, 30 and 45minutes respectively. At what time will they ring together again, if they rang simultaneously at 8.00 AM?_x005F_x000D_
A.	8.30 AM
B.	9.30 AM
C.	9.00 AM
D.	8.45 AM
Answer» C. 9.00 AM

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