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hello I am new here my friend recommended me this website.

here is my question:

if a clock chimes the number of the hour every hour, how many times will it chime in a day?

  • math -

    it goes through the sequence of chimes from 1-12 twice during the day.

    The sum of all the numbers from 1 to n is n(n+1)/2

    So, the clock chimes

    2 * (12*13)/2 = 156 times

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