Mathematics · LCM and HCF
Traffic lights at three different junctions on a highway turn green every 60 seconds, 120 seconds, and 24 seconds respectively. If all the lights turned green simultaneously at 7:00 AM, after how much time will they all turn green again at the same time?
- 12 minutes✓
- 2120 minutes
- 312 hours
- 424 hours
Correct answer
2 minutes
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