Look carefully for the pattern, and then choose which pair of numbers comes…

20252025202320252024

Look carefully for the pattern, and then choose which pair of numbers comes next.

9 11 33 13 15 33 17

  1. A.

    19 33

  2. B.

    33 35

  3. C.

    33 19

  4. D.

    15 33

Attempted by 101 students.

Show answer & explanation

Correct answer: A

Answer: 19 33

Explanation:

The sequence is made by interleaving two patterns:

  • An arithmetic sequence of odd numbers starting at 9 and increasing by 2: 9, 11, 13, 15, 17, 19, ...

  • The constant number 33 inserted at every third position.

Map the given terms to positions to see the pattern:

  • Positions 1–7: 9 (1), 11 (2), 33 (3), 13 (4), 15 (5), 33 (6), 17 (7).

  • Therefore positions 8 and 9 are the next arithmetic term 19 and then 33.

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