Mathematics · LCM and HCF
Two alarm clocks ring their alarms at regular intervals of 72 seconds and 80 seconds respectively. If they first beep together at 6:00 AM, at what time will they beep together again for the first time?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 16:15 AM
- 26:12 AM✓
- 36:17 AM
- 46:19 AM
Correct answer
6:12 AM
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