Beach Day by Rodger Bliss
May 2024
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A Four Digit Number is Not A Bad Number

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What is the 4-digit number (no zeros) in which the first digit is the cube of two, the second and third digits are the first number doubled, and the fourth digit is the sum of the second and third?

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4 guesses to A Four Digit Number is Not A Bad Number


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  • Steve you are today’s winner!
    The answer is 8167

  • Crabman

    Mshaw, just follow each instructions. It tells you exactly

    1. First number is is cube of 2. (which is 2*2*2) = 8
    2. Second and third numbers are twice the first (which is 2*8) = 16
    3. 4th number is sum of second and third (which is 1+6) = 7

    So depending on what you call the first number, combining these digits you get 8167 or 7168.