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SSC CGL Tier 2 Exam 12 Jan 2017 Paper 1

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Question : 9

Total: 100

Three electronic devices make a beep after every 48 seconds, 72 seconds and 108 seconds respectively. They beeped together at 10 a.m. The time when they will next make a beep together at the earliest is

10 : 07 : 12 hours
10 : 07 : 24 hours
10 : 07 : 36 hours
10 : 07 : 48 hours

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