Mathematics · LCM and HCF
The traffic lights at three different crossings turn red after every 30 seconds, 45 seconds, and 60 seconds, respectively. If they all turn red simultaneously at 8:30 a.m., then at what time will they next turn red simultaneously?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 18:33 a.m.✓
- 28:38 a.m.
- 38:35 a.m.
- 48:34 a.m.
Correct answer
8:33 a.m.
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