Find the one which does not belong to that group ?

Correct answer: D. KIM

A. PMS
B. ROU
C. GDJ
D. KIM
E. EBH

Explanation

In PMS, ROU, GDJ and EBH, the second letter is three positions before the first and the third is six positions after it. KIM gives K=11, I=9, M=13, which has changes -2 and +4, so it breaks the pattern. Students may choose GDJ because it begins with less familiar letters, but its positions 7, 4, 10 fit exactly.

Written and checked by Zahid Hussain, MS Computer ScienceLast updated 2 September 2026

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About Sequences and Series

Sequences describe ordered terms formed by a pattern, while series represent the sum of those terms. Questions cover arithmetic and geometric sequences, their nth terms, common difference or ratio, finite sums, and applications, with the sequence itself kept distinct from the corresponding series.

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