Question: The traffic lights at three different road crossing change after every 48 seconds, 72 seconds and 108 seconds respectively. If they all change simultaneously at 8.20 hours, then at what time will they again change simultaneously ?
Options
A : 8.22.15 hrs
B : 8.27.12 hrs
C : 8.28.35 hrs
D : 8.30.30 hrs
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