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The traffic lights at three different road crossings change after every 48 seconds, 72 seconds, and 108 seconds respectively. If they change simultaneously at 7 a.m. at what time will they change simultaneously again? |
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Answer» The three lights will change simultaneously again at 7 hours 7 minutes 12 seconds in the morning, i.e., at 07:07:12 a.m. Explanation: |
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