Understanding Letter Cluster Pairs Reasoning
The question asks us to identify which pair of letter clusters does not follow a specific pattern related to the English alphabetical order. Three out of the four options will share a common logical relationship, while one will be the outlier.
Analyzing Letter Cluster Pairs
First, let's assign numerical values to each letter based on its position in the English alphabet (A=1, B=2, ..., Z=26).
| Option | Letter Cluster Pair | Letters | Numerical Positions |
|---|---|---|---|
| 1 | PK - MJ | P, K, M, J | P(16), K(11), M(13), J(10) |
| 2 | NO - IJ | N, O, I, J | N(14), O(15), I(9), J(10) |
| 3 | FG - AB | F, G, A, B | F(6), G(7), A(1), B(2) |
| 4 | JK - EF | J, K, E, F | J(10), K(11), E(5), F(6) |
Identifying the Pattern
We need to find a consistent relationship between the first cluster (e.g., PK) and the second cluster (e.g., MJ) within each option. Let's examine the difference in alphabetical positions between the corresponding letters:
Option 2: NO - IJ
- First letter comparison: N (14) and I (9). The difference is $9 - 14 = -5$.
- Second letter comparison: O (15) and J (10). The difference is $10 - 15 = -5$.
- Observation: Both pairs have the same difference (-5).
Option 3: FG - AB
- First letter comparison: F (6) and A (1). The difference is $1 - 6 = -5$.
- Second letter comparison: G (7) and B (2). The difference is $2 - 7 = -5$.
- Observation: Both pairs have the same difference (-5).
Option 4: JK - EF
- First letter comparison: J (10) and E (5). The difference is $5 - 10 = -5$.
- Second letter comparison: K (11) and F (6). The difference is $6 - 11 = -5$.
- Observation: Both pairs have the same difference (-5).
Option 1: PK - MJ
- First letter comparison: P (16) and M (13). The difference is $13 - 16 = -3$.
- Second letter comparison: K (11) and J (10). The difference is $10 - 11 = -1$.
- Observation: The differences (-3 and -1) are not the same.
Conclusion
The pattern observed in options 2, 3, and 4 is that the alphabetical difference between the first letter of the first cluster and the first letter of the second cluster is consistently -5, and the alphabetical difference between the second letter of the first cluster and the second letter of the second cluster is also consistently -5.
Option 1 (PK - MJ) does not follow this pattern because the differences are -3 and -1, which are not equal. Therefore, PK - MJ is the letter-cluster pair that does not belong to the group.
Important Questions from Classification
Three of the following four are alike in a certain way and thus form a group. Which is the one 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.)Three of the following numbers are alike in a certain way and one is different. Pick the odd one out.
(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g. 13 – Operations on 13 such as adding/deleting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)
The following contains two pairs of words which are related to each other in a certain way. Three of the following four word-pairs are alike as these have the same relationship and thus form a group. Which word-pair does NOT belong to that group?
(The words must be considered as meaningful English words and must not be grouped based on the number of letters/number of consonants/vowels in the word)Three of the following four options are alike in a certain way and thus form a group. Which is the one that does NOT belong to that group?
(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g., 13 – Operations on 13 such as adding/subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)
The following contains two pairs of words which are related to each other in a certain way. Three of the following four word-pairs are alike as these have the same relationship and thus form a group. Which word-pair does NOT belong to that group?
(The words must be considered as meaningful English words and must not be grouped based on the number of letters/number of consonants/vowels in the word)
