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
Directions for the following 3 (three) items : consider the given information and answer the three items that follow.
A, B, C, D, E, F and G are Lecturers from different cities—Hyderabad, Delhi, Shillong, Kanpur, Chennai, Mumbai and Srinagar (not necessarily in the same order) who participated in a conference. Each one of them is specialized in a different subject, viz., Economics, Commerce, History, Sociology, Geography, Mathematics and Statistics (not necessarily in the same order).
Further 1. Lecturer from Kanpur is specialized in Geography
2. Lecturer D is from Shillong
3. Lecturer C from Delhi is specialized in Sociology
4. Lecturer B is specialized in neither History nor Mathematics
5. Lecturer A who is specialized in Economics does not belong to Hyderabad
6. Lecturer F who is specialized in Commerce belongs to Srinagar
7. Lecturer G who is specialized in Statistics belongs to Chennai
Who is specialized in Geography?
A, B, C, D, E, F and G are Lecturers from different cities—Hyderabad, Delhi, Shillong, Kanpur, Chennai, Mumbai and Srinagar (not necessarily in the same order) who participated in a conference. Each one of them is specialized in a different subject, viz., Economics, Commerce, History, Sociology, Geography, Mathematics and Statistics (not necessarily in the same order).
Further 1. Lecturer from Kanpur is specialized in Geography
2. Lecturer D is from Shillong
3. Lecturer C from Delhi is specialized in Sociology
4. Lecturer B is specialized in neither History nor Mathematics
5. Lecturer A who is specialized in Economics does not belong to Hyderabad
6. Lecturer F who is specialized in Commerce belongs to Srinagar
7. Lecturer G who is specialized in Statistics belongs to Chennai
To which city does the Lecturer specialized in Economics belong?
A, B, C, D, E, F and G are Lecturers from different cities—Hyderabad, Delhi, Shillong, Kanpur, Chennai, Mumbai and Srinagar (not necessarily in the same order) who participated in a conference. Each one of them is specialized in a different subject, viz., Economics, Commerce, History, Sociology, Geography, Mathematics and Statistics (not necessarily in the same order).
Further 1. Lecturer from Kanpur is specialized in Geography
2. Lecturer D is from Shillong
3. Lecturer C from Delhi is specialized in Sociology
4. Lecturer B is specialized in neither History nor Mathematics
5. Lecturer A who is specialized in Economics does not belong to Hyderabad
6. Lecturer F who is specialized in Commerce belongs to Srinagar
7. Lecturer G who is specialized in Statistics belongs to Chennai
Who of the following belongs to Hyderabad?
In a school, there are five teachers A, B, C, D and E. A and B teach Hindi and English. C and B teach English and Geography. D and A teach Mathematics and Hindi. E and B teach History and French. Who teaches maximum numb, of subjects?
How many triangles are there in the given figure?
