A bell rings every 18 minutes. A second bell rings every 24 minutes. A third bell rings every 32 minutes. If all the three bells ring at the same time at 8 o’clock in the morning, at what other time will they all ring together ?
1
12 ∶ 40 hrs
2
12 ∶ 48 hrs
3
12 ∶ 56 hrs
4
13 ∶ 04 hrs
5
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