A bell in a clock rings once at 1 o'clock , twice at 2 o'clock , thrice at 3 o'clock, and so on......Then how many times it rings a day????
Maths
- Trisha
- 24 मई
- 5 उत्तर
5 उत्तर
5 उत्तर
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Total bell rings in 12 hours = 1+2+...+12
Total bell rings in 24 hours = 2(1+2+...+12) {because, after 12 o'clock, the clock resets and starts from 1 instead of 13}
Total bell rings = 2(78)
= 156
1Modal content
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The bell rings 78 time in 12 hour and 156 times ring in 24 hours0Modal content
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It rings 78 times in 12hours, since a complete day is of 24 hrs it would be ringing for 156 times1Modal content
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For me 78 times in 12 hours and 156 times in 24 hours.5Modal content
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78 times as of 12 hours and 156 times as of 24 hours2Modal content
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