Mathematics · LCM and HCF
Two alarm clocks ring their alarms at regular intervals of 144 seconds and 120 seconds respectively. If they first beep together at 6:00 PM, at what time will they beep together again for the next time?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 16:12 PM✓
- 26:21 PM
- 36:15 PM
- 46:18 PM
Correct answer
6:12 PM
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