To determine which letter does not belong in the series d, f, h, j, k, n, p, r, we can analyze the pattern of the letters.
The letters in the series can be examined based on their positions in the alphabet:
- d – 4
- f – 6
- h – 8
- j – 10
- k – 11
- n – 14
- p – 16
- r – 18
From this breakdown, we can observe that the series primarily consists of letters that are spaced out by two positions in the alphabet from each other, except for the letter k.
If we follow the established pattern, the sequence would ideally be:
- d (4)
- f (6)
- h (8)
- j (10)
- l (12) – note, this is where the sequence should continue
- n (14)
- p (16)
- r (18)
As we can see, in place of k (11), there should have been l (12). Thus, the letter k does not belong in this series.