Multiple choice general knowledge math & puzzles

Look at this series: 8, 43, 11, 41, __, 39, 17, ... What number should fill in the blank?

  1. 8

  2. 14

  3. 43

  4. 44

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This series has two interleaved patterns. Odd positions (1st, 3rd, 5th, 7th): 8, 11, __, 17 increase by 3 each time, so the blank is 14. Even positions (2nd, 4th, 6th): 43, 41, 39 decrease by 2 each time. Option A (8) is the starting value, not the missing one. Option C (43) appears later in the series.