Multiple choice general knowledge math & puzzles

3, 5, 11, 14, 17, 21

  1. 21

  2. 17

  3. 14

  4. 3
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In the sequence 3, 5, 11, 14, 17, 21, the number 14 is the odd one out because it is the only even number, while all others (3, 5, 11, 17, 21) are odd. This is a straightforward parity-based classification.

AI explanation

All the other numbers in the set (3, 5, 11, 17, 21) are odd, while 14 is the only even number, making it the one that breaks the pattern. Spotting the shared property (oddness) among most terms is the key to finding the odd one out.

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