Multiple choice general knowledge math & puzzles

3,5;5,7;11,13;17,19;?,31;41,43

  1. 29

  2. 27

  3. 25

  4. 23

  5. 21
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The sequence consists of pairs of twin primes (primes with a difference of 2). The pairs are (3,5), (5,7), (11,13), (17,19), and (41,43). The missing pair is (29,31), so the first number in that pair is 29.

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