Mathematics · LCM and HCF
The traffic lights at three different road crossings change after every 48 seconds, 72 seconds, and 108 seconds respectively. If they all change simultaneously at 8:20 am, at what time will they again change simultaneously?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 19:12 am
- 28:27:12 am✓
- 38:33:12 am
- 48:40 am
Correct answer
8:27:12 am
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