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Question

Four letter-clusters have been given, out of which three are alike in some manner and one is different. Select the letter-cluster that is different.

This question was previously asked in
SSC Selection Post 2021 Question Paper (09-Feb-2022) (Shift-1)
The correct answer is
QSW

Understanding Letter Cluster Patterns

The question asks us to identify the letter cluster that is different from the others. We need to find a pattern connecting three of the letter clusters, which the fourth one does not follow.

Analyzing Alphabetical Positions

Let's look at the positions of the letters in the English alphabet for each cluster:

  • A = 1, B = 2, C = 3, ..., Z = 26

Step-by-Step Analysis of Each Cluster

Cluster 1: KMP

Letter positions:

  • K is the 11th letter.
  • M is the 13th letter.
  • P is the 16th letter.

Calculating the difference between consecutive letters:

  • Difference between M and K: $13 - 11 = 2$
  • Difference between P and M: $16 - 13 = 3$

The pattern is: +2, +3

Cluster 2: MOR

Letter positions:

  • M is the 13th letter.
  • O is the 15th letter.
  • R is the 18th letter.

Calculating the difference between consecutive letters:

  • Difference between O and M: $15 - 13 = 2$
  • Difference between R and O: $18 - 15 = 3$

The pattern is: +2, +3

Cluster 3: SUX

Letter positions:

  • S is the 19th letter.
  • U is the 21st letter.
  • X is the 24th letter.

Calculating the difference between consecutive letters:

  • Difference between U and S: $21 - 19 = 2$
  • Difference between X and U: $24 - 21 = 3$

The pattern is: +2, +3

Cluster 4: QSW

Letter positions:

  • Q is the 17th letter.
  • S is the 19th letter.
  • W is the 23rd letter.

Calculating the difference between consecutive letters:

  • Difference between S and Q: $19 - 17 = 2$
  • Difference between W and S: $23 - 19 = 4$

The pattern is: +2, +4

Identifying the Different Cluster

We observe that the letter clusters KMP, MOR, and SUX all follow the same pattern of differences between consecutive letters: +2 and +3.

The letter cluster QSW follows a different pattern: +2 and +4.

Therefore, QSW is the letter cluster that is different from the others.

Cluster Letters Positions Difference 1 Difference 2 Pattern
KMP K, M, P 11, 13, 16 $13 - 11 = 2$ $16 - 13 = 3$ +2, +3
MOR M, O, R 13, 15, 18 $15 - 13 = 2$ $18 - 15 = 3$ +2, +3
SUX S, U, X 19, 21, 24 $21 - 19 = 2$ $24 - 21 = 3$ +2, +3
QSW Q, S, W 17, 19, 23 $19 - 17 = 2$ $23 - 19 = 4$ +2, +4

Conclusion

Based on the analysis of the alphabetical position differences, the cluster QSW stands out as it does not follow the common +2, +3 pattern observed in the other three clusters.

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Important Questions from Classification

  1. 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?

  2. 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?

  3. 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?

  4. 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?

  5. How many triangles are there in the given figure?

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