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Posted by on Wednesday, November 9, 2011 at 1:47am.

Use the pattern "1 less than 3 times the number." Start with the number 5. What is the 4th number in the pattern?

  • Math - , Wednesday, November 9, 2011 at 1:54am

    The answer is not 23 or 365.

  • Math - , Wednesday, November 9, 2011 at 1:55am

    The rule "1 less than 3 times the number" makes this equation:

    3x-1



    1st number: 3 * (5) - 1 = 15 - 1 = 14

    2nd number: 3 * (14) - 1 = 42-1 = 41

    3rd number: 3 * (41) - 1 = 123 - 1 = 122

    4th number: 3 * (122) - 1 = 366 - 1 = 365

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