Multiple choice

Directions: In this question, a series is given with one term missing. Choose the correct alternative from the given ones that will complete the series. 12, 13, 15, 17, 21, 23, 27, ?

  1. 28

  2. 30

  3. 20

  4. 29

  5. None of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The series follows a pattern of adding 1, 2, 2, 4, 2, 4, 2... or looking at alternating terms: 12, 15, 21, 27 (add 3, 6, 6) and 13, 17, 23, ? (add 4, 6, 6). The next term is 23 + 6 = 29.

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