Mathematics · LCM and HCF
A bell rings every 10 minutes. A second bell rings every 5 minutes. A third bell rings every 7 minutes. If all three bells ring together at 12:00 noon for the first time, how many times will they ring together again until 3:00 PM on the same day?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Three times
- 2Four times
- 3Two times✓
- 4One time
Correct answer
Two times
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