Recent content by bindwood

  1. B

    Solving the Age Difference Puzzle: Carol & Father

    thank you very much for the help, esp the data provided. Then can we just say the difference is less than 36 with the probability p1, or equals to 36 with the probability p2, or even greater than 36 with the probability p3, where p1,p2,p3 from 0 to 1 (exclusive). Apparently p2>p1>>p3. Then a...
  2. B

    The Mystery of Carol and Her Father's Ages

    carol's age in years, can be expressed by reversing the digits in her father's age, in years. the sum of the digits in each age is 10. the positive difference between carol's age in years, and her fater's age in years___36 a.> b.< c.= d.uncertain In my opinion, there are four pairs...
  3. B

    Solving the Age Difference Puzzle: Carol & Father

    carol's age in years, can be expressed by reversing the digits in her father's age, in years. the sum of the digits in each age is 10. the positive difference between carol's age in years, and her fater's age in years___36 a.> b.< c.= d.uncertain In my opinion, there are four pairs...
  4. B

    Can a Circle be Described as a Polygon?

    very good explanation! tnx for your sharing
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