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Quiz: Number and Letter Series

5 questionsNo time limitPass: 60%+10 XP on first pass

A checklist of the patterns examiners use — differences, multiplication, squares, primes, alternating series and letter jumps — with a picture of the difference method.

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  1. Question 1

    Find the next term: 4, 9, 16, 25, 36, ?

  2. Question 2

    Find the next term: 1, 3, 7, 15, 31, ?

  3. Question 3

    Find the wrong number: 2, 6, 12, 20, 31, 42

  4. Question 4

    Find the next term: C, F, I, L, ?

  5. Question 5

    Find the next term: 2, 10, 4, 20, 8, 40, ?