Multiple choice

Which is the missing number is the series, 4, 7, 11, 18, 29, 47, ___, 123, 199?

  1. 76

  2. 77

  3. 86

  4. 87
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A Correct answer
Explanation

The series follows the rule: each number is the sum of the two preceding numbers (Fibonacci-like). 4+7=11, 7+11=18, 11+18=29, 18+29=47, 29+47=76.

AI explanation

This series follows a Fibonacci-type addition pattern where each term is the sum of the previous two terms. Adding 29 and 47 gives 76. We can verify this because adding 47 and 76 yields 123, which is the next term in the sequence.

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