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1. |
4 bells ring at intervals of 30 minutes. 1 hour , $1\frac{1}{2}$ hour and 1 hour 45 minutes respectively. All the bells ring simultaneously at 12 noon. They will again ring simultaneously at :1). 12 mid night2). 3 a .m.3). 6 a m.4). 9 a m. |
Answer» OPTION 4 : SEEMS CORRECT | |