Letter Group Classification Questions with Solutions

Three letter-groups share a hidden gap pattern between their letters, and one group breaks it — this is Classification applied specifically to letter clusters, checked using the same position-number trick as Alphabet Series. Here’s the approach, four fully worked examples, and a few to try yourself.

The approach, quickly

• Convert every letter to its position number (A=1, B=2, … Z=26) first, exactly as in Alphabet Series — comparing numbers is far less error-prone than counting letters in your head.
• Find the gap between consecutive letters in each group (second − first, third − second). Three groups sharing the same gap pattern point to the rule; the fourth group deviates from it.
• Check the FULL gap pattern, not just the first gap — a group can match on the first gap and still be the odd one out if its second gap is different.
• Once you’ve found the shared gap pattern from three groups, verify it explains all three completely before concluding the fourth is odd — this avoids locking onto a coincidental partial match.

Worked examples

Try these yourself

Convert to position numbers, find the shared gap pattern from three groups, then check against the answer.

Where this comes up

Letter Group Classification is a regular topic in the Reasoning/General Intelligence section of every exam Pariksha Saathi covers — SSC CGL, SSC MTS, SSC CHSL, IBPS PO, IBPS Clerk, SBI PO and SBI Clerk.

Practice more Letter Group Classification questions

This page covers the approach and a handful of worked examples. Pariksha Saathi has full topic-wise practice sets for Letter Group Classification (and every other Reasoning/Quant/English topic) with instant scoring and explanations — free, no account required.