Question

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.)

• A. PRT
• B. SUW
• C. EGI
• D. JLM

Answer 1

Answer:

D. JLM

The odd one out is JLM.

To find the odd term, we look at the gap between consecutive letters in each group:

* PRT:

* $P \xrightarrow{+2} R \xrightarrow{+2} T$ (P=16, R=18, T=20) — Constant +2 gap

* SUW:

* $S \xrightarrow{+2} U \xrightarrow{+2} W$ (S=19, U=21, W=23) — Constant +2 gap

* EGI:

* $E \xrightarrow{+2} G \xrightarrow{+2} I$ (E=5, G=7, I=9) — Constant +2 gap

* JLM:

* $J \xrightarrow{+2} L \xrightarrow{+1} M$ (J=10, L=12, M=13) — Breaks pattern (+2, +1)

Since JLM does not maintain the uniform +2 spacing between all its letters, it is the odd one out.