Alphabetical Series Pattern Analysis

The question asks us to identify the next term in the given sequence of letter triplets: GJF, ILH, KNJ, MPL, ?. To solve this, we need to carefully examine the pattern connecting these terms based on the English alphabetical order.

Deconstructing the Series Pattern

We can find the underlying pattern by looking at the relationship between the letters in each position (first, second, and third) across the terms.

First, let's assign numerical values to each letter based on its position in the alphabet (A=1, B=2, ..., Z=26).

The given terms can be represented numerically as:

• GJF: G(7), J(10), F(6)
• ILH: I(9), L(12), H(8)
• KNJ: K(11), N(14), J(10)
• MPL: M(13), P(16), L(12)

Step-by-Step Pattern Identification

Now, let's analyze the progression of numbers for each letter position:

Pattern in the First Letter

The first letters of the terms are G, I, K, M. Their corresponding positions are 7, 9, 11, 13.

Observing the difference between consecutive positions:

• Position of I (\(9\)) - Position of G (\(7\)) = \(2\)
• Position of K (\(11\)) - Position of I (\(9\)) = \(2\)
• Position of M (\(13\)) - Position of K (\(11\)) = \(2\)

The pattern is consistently adding \(2\) to the alphabetical position. To find the next first letter, we add \(2\) to the position of M (\(13\)): \(13 + 2 = 15\). The letter at the 15th position is O.

Pattern in the Second Letter

The second letters are J, L, N, P. Their corresponding positions are 10, 12, 14, 16.

Observing the difference between consecutive positions:

• Position of L (\(12\)) - Position of J (\(10\)) = \(2\)
• Position of N (\(14\)) - Position of L (\(12\)) = \(2\)
• Position of P (\(16\)) - Position of N (\(14\)) = \(2\)

This position also follows a pattern of adding \(2\). To find the next second letter, we add \(2\) to the position of P (\(16\)): \(16 + 2 = 18\). The letter at the 18th position is R.

Pattern in the Third Letter

The third letters are F, H, J, L. Their corresponding positions are 6, 8, 10, 12.

Observing the difference between consecutive positions:

• Position of H (\(8\)) - Position of F (\(6\)) = \(2\)
• Position of J (\(10\)) - Position of H (\(8\)) = \(2\)
• Position of L (\(12\)) - Position of J (\(10\)) = \(2\)

This third position also follows the same pattern of adding \(2\). To find the next third letter, we add \(2\) to the position of L (\(12\)): \(12 + 2 = 14\). The letter at the 14th position is N.

Determining the Missing Term

By combining the next letters determined for each position, we get:

• First Letter: O
• Second Letter: R
• Third Letter: N

Therefore, the missing term that logically follows in the series GJF, ILH, KNJ, MPL, ? is ORN.

Conclusion on Series Completion

The series follows a consistent rule where each letter in the subsequent term is found by moving two places forward in the alphabet from the corresponding letter in the previous term. Applying this rule confirms ORN as the correct continuation of the alphabetical series.