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Question

Five letter-clusters have been given, out of which four are alike in some manner and one is different. Select the letter-cluster that is different.
WXZ, RSU, MNP, KLM, EFH

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

Letter-Cluster Analysis

The question asks us to identify the odd one out from the given five letter clusters: WXZ, RSU, MNP, KLM, EFH. We need to find a pattern common to four of the clusters that the fifth one does not follow.

Analyzing Cluster Patterns

To find the pattern, let's look at the position of each letter in the English alphabet (A=1, B=2, ..., Z=26) and the difference between consecutive letters within each cluster.

Cluster 1: WXZ

  • W is the 23rd letter.
  • X is the 24th letter.
  • Z is the 26th letter.
  • The difference between W and X is $24 - 23 = 1$.
  • The difference between X and Z is $26 - 24 = 2$.
  • Pattern: +1, +2

Cluster 2: RSU

  • R is the 18th letter.
  • S is the 19th letter.
  • U is the 21st letter.
  • The difference between R and S is $19 - 18 = 1$.
  • The difference between S and U is $21 - 19 = 2$.
  • Pattern: +1, +2

Cluster 3: MNP

  • M is the 13th letter.
  • N is the 14th letter.
  • P is the 16th letter.
  • The difference between M and N is $14 - 13 = 1$.
  • The difference between N and P is $16 - 14 = 2$.
  • Pattern: +1, +2

Cluster 4: KLM

  • K is the 11th letter.
  • L is the 12th letter.
  • M is the 13th letter.
  • The difference between K and L is $12 - 11 = 1$.
  • The difference between L and M is $13 - 12 = 1$.
  • Pattern: +1, +1

Cluster 5: EFH

  • E is the 5th letter.
  • F is the 6th letter.
  • H is the 8th letter.
  • The difference between E and F is $6 - 5 = 1$.
  • The difference between F and H is $8 - 6 = 2$.
  • Pattern: +1, +2

Identifying the Different Cluster

By analyzing the patterns:

  • WXZ follows the +1, +2 pattern.
  • RSU follows the +1, +2 pattern.
  • MNP follows the +1, +2 pattern.
  • EFH follows the +1, +2 pattern.
  • KLM follows the +1, +1 pattern.

Four clusters (WXZ, RSU, MNP, EFH) share the pattern where the gap between the first and second letter is 1, and the gap between the second and third letter is 2. The cluster KLM does not follow this pattern; its gaps are both 1.

Summary Table

Cluster Letter 1 Position Letter 2 Position Letter 3 Position Difference 1-2 Difference 2-3 Pattern
WXZ 23 (W) 24 (X) 26 (Z) $24 - 23 = 1$ $26 - 24 = 2$ +1, +2
RSU 18 (R) 19 (S) 21 (U) $19 - 18 = 1$ $21 - 19 = 2$ +1, +2
MNP 13 (M) 14 (N) 16 (P) $14 - 13 = 1$ $16 - 14 = 2$ +1, +2
KLM 11 (K) 12 (L) 13 (M) $12 - 11 = 1$ $13 - 12 = 1$ +1, +1
EFH 5 (E) 6 (F) 8 (H) $6 - 5 = 1$ $8 - 6 = 2$ +1, +2

Therefore, the letter cluster KLM is different from the others based on this pattern.

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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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