Based on the English alphabetical order, three of the following four letter-clusters are alike in a certain way and thus form a group. Which letter-cluster 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.)
Alphabetical Reasoning: Identifying the Odd Letter Cluster
This question asks us to identify the letter cluster that does not follow a specific pattern related to the English alphabetical order. We need to find a common characteristic shared by three of the given options and pinpoint the one that is different.
Analyzing Letter Clusters Based on Alphabetical Positions
To solve this, we first assign numerical positions to each letter based on its place in the English alphabet (A=1, B=2, C=3, and so on). Then, we examine the differences between the positions of consecutive letters within each cluster.
| Letter Cluster | Letter Positions | Difference 1 (Pos 2 - Pos 1) | Difference 2 (Pos 3 - Pos 2) |
|---|---|---|---|
| PXR | P(16), X(24), R(18) | $24 - 16 = +8$ | $18 - 24 = -6$ |
| LTO | L(12), T(20), O(15) | $20 - 12 = +8$ | $15 - 20 = -5$ |
| NVQ | N(14), V(22), Q(17) | $22 - 14 = +8$ | $17 - 22 = -5$ |
| HPK | H(8), P(16), K(11) | $16 - 8 = +8$ | $11 - 16 = -5$ |
Discovering the Underlying Pattern
Upon analyzing the differences, a pattern emerges for three of the clusters:
- The difference in alphabetical position between the first and second letters is consistently +8.
- The difference in alphabetical position between the second and third letters is consistently -5.
This pattern is observed in the letter clusters LTO, NVQ, and HPK.
Identifying the Non-conforming Cluster
The letter cluster PXR stands out because it does not follow this established pattern. While the difference between P and X is +8 ($24 - 16 = +8$), the difference between X and R is -6 ($18 - 24 = -6$). This second difference of -6 differs from the common -5 found in the other three clusters.
Therefore, PXR is the letter cluster 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.)
