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
In the following question, four number pairs are given. In each pair the number on left side of (-) is related to the number of the right side of (-) with some Logic/Rule/Relation. Three pairs are similar on basis of same Logic/Rule/Relation.
Select the odd one out from the given alternatives. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its 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)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.)
