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Question

Based on the English alphabetical order, three of the following four letter-cluster pairs are alike in a certain way and thus form a group. Which letter-cluster pair DOES NOT belong to that group?
(Note: The odd one out is not based on the number of consonants/vowels or their position in the letter-cluster.)

The correct answer is
LP-GI

Letter Cluster Pairs Analysis

The task is to identify which of the given letter cluster pairs does not follow a specific rule that is common to the other three pairs. The rule is based on the sequence of letters in the English alphabet.

Alphabetical Position Breakdown

To solve this, we first assign numerical positions to each letter according to its place in the alphabet (A=1, B=2, ..., Z=26). Then, we analyze the relationship between the letters within each cluster and between the two clusters in each pair.

Pair Cluster 1 (Letters) Cluster 1 (Positions) Cluster 2 (Letters) Cluster 2 (Positions) Difference (1st Letter) Difference (2nd Letter)
1. LP-GI L, P L = 12, P = 16 G, I G = 7, I = 9 $7 - 12 = -5$ $9 - 16 = -7$
2. NR-IL N, R N = 14, R = 18 I, L I = 9, L = 12 $9 - 14 = -5$ $12 - 18 = -6$
3. JN-EH J, N J = 10, N = 14 E, H E = 5, H = 8 $5 - 10 = -5$ $8 - 14 = -6$
4. PT-KN P, T P = 16, T = 20 K, N K = 11, N = 14 $11 - 16 = -5$ $14 - 20 = -6$

Identifying the Grouping Pattern

We observe the differences in alphabetical positions between the first letter of Cluster 1 and the first letter of Cluster 2, and similarly for the second letters.

  • For the pair NR-IL: The first letter N (position 14) corresponds to I (position 9). The difference is $9 - 14 = -5$. The second letter R (position 18) corresponds to L (position 12). The difference is $12 - 18 = -6$.
  • For the pair JN-EH: The first letter J (position 10) corresponds to E (position 5). The difference is $5 - 10 = -5$. The second letter N (position 14) corresponds to H (position 8). The difference is $8 - 14 = -6$.
  • For the pair PT-KN: The first letter P (position 16) corresponds to K (position 11). The difference is $11 - 16 = -5$. The second letter T (position 20) corresponds to N (position 14). The difference is $14 - 20 = -6$.

The pairs NR-IL, JN-EH, and PT-KN consistently follow a pattern where the transformation from the first cluster to the second involves subtracting 5 from the first letter's position and subtracting 6 from the second letter's position.

LP-GI: The Letter Pair That Doesn't Belong

Now, let's examine the pair LP-GI using the same logic:

  • The first letter L (position 12) corresponds to G (position 7). The difference is $7 - 12 = -5$. This part fits the established pattern.
  • However, the second letter P (position 16) corresponds to I (position 9). The difference is $9 - 16 = -7$. This difference of -7 does not match the required -6 difference found in the other pairs.

Since the pair LP-GI exhibits a different pattern in the transformation of its second letter compared to the consistent rule (-5, -6) applied by the other three pairs, it is the odd one out.

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Important Questions from Classification

  1. For the following questions Find the odd word/letters/number pair from the given alternatives.

  2. For the following questions Find the odd word/letters/number pair from the given alternatives.

  3. For the following questions Find the odd word/letters/number pair from the given alternatives.

  4. Based on the English alphabetical order, three of the following four letter-cluster pairs are alike in a certain way and thus form a group. Which letter-cluster pair DOES NOT belong to that group?
    (Note: The odd one out is not based on the number of consonants/vowels or their position in the letter-cluster.)
  5. Based on the English alphabetical order, three of the following four letter-cluster pairs are alike in a certain way and thus form a group. Which is the letter-cluster pair that DOES NOT belong to that group?
    (Note: The odd one out is not based on the number of consonants/vowels or their position in the letter-cluster.)
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