Mathematics · LCM and HCF
The traffic lights at 3 different road crossings change after every 48 sec, 72 sec and 108 sec, respectively. If they all change simultaneously at 8:20 a.m., then at what time will they next change again simultaneously?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 18:27:12 a.m.✓
- 28:33:32 a.m.
- 39:12:18 a.m.
- 48:40:14 a.m.
Correct answer
8:27:12 a.m.
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