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Number Series (Posted on 2004-02-14) Difficulty: 4 of 5
Find the next number in the following series:

11, 12, 20, 23, 33, 46, ?, ?

See The Solution Submitted by Ravi Raja    
Rating: 3.0000 (3 votes)

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Solution Based on a Fib | Comment 2 of 11 |
Shift the recursive Fibonacci sequence 3 terms to the left, call it f(n) = 3, 5, 8, 13, 21, 34, 55, ... and apply an incremented base scheme starting with 2. So t(n) = f(n)base(n+1). t(7) = f(7)base(8) = 55 base(8) = 67. Why are there two question marks in the question when it says to find the next number (raises eyebrow)?
  Posted by Haiosu on 2004-02-14 17:03:18
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