Mathematics · HCF and LCM
Four different electronic devices make a beep after every 30 minutes, 1 hour, 112 hours and 1 hour 45 minutes respectively. All the devices beeped together at 12 noon. They will again beep together at:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 19 a.m.✓
- 26 a.m.
- 33 a.m.
- 412 midnight
Correct answer
9 a.m.
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