SSC CGL Letter Classification Questions 2026 — Free Chapter Wise Practice Test

Letter Classification Tests — Pick a Level and Start

Tap a level to see every test in it. Level 1 is set at real SSC CGL difficulty — start there the day you finish the concept. Level 2 is pitched above the exam, to push accuracy under pressure.

Every classification question gives four items where three share one property and one does not. Find what the three have in common first, in one short sentence, and only then pick the item that breaks it — looking for “the strange one” without a rule is how the trap options win.

Marks are lost in three places. The first is stopping at the first rule that works — four items can often be split two ways, and only a rule that leaves exactly one out is right. The second is picking the least familiar item instead of the one that breaks the rule. The third is missing the quieter property — at Level 2 all four share the obvious feature and a second one decides.

How Many Letter Classification Questions Are Asked in SSC CGL?

Classification (odd one out) is one of the steadiest chapters in SSC CGL reasoning — usually two to three questions in every Tier I shift and a few more in Tier II Paper I. More than 300 verbal classification questions have appeared in SSC papers from 2010 to 2024, and they split into the five chapters below.

Shares are from SSC CGL, CHSL, MTS, Steno and CPO papers, 2010–2024 (figure-based questions are counted under Figure Classification). Word-pair questions are a small share of the older papers but the format SSC now uses most in Tier II; practise all five chapters so no format surprises you.

What You Will Practice in the Letter Classification Chapter

Single letters and pairs

• Vowels and consonants, and letters by position (even or odd, a multiple of 3)
• Opposite letters — A–Z, B–Y, M–N
• Letter pairs with the same gap or the same reflection

Letter clusters

• Consecutive runs, equal gaps and growing gaps
• Backward runs and reversed clusters
• Clusters that skip a letter or break a run

Two-step and wrap-around patterns

• Down-then-up steps such as −3, +5
• Clusters that cross Z and wrap back to A
• Positions that add to a square, a multiple or a fixed total
• Clusters with the same set of letters in a different order

Patterns worth recognising instantly

Write each letter’s position (A = 1 … Z = 26) under it — most clusters are solved by the gaps between those numbers.

The three mistakes that cost the most marks

• Judging by the first and last letter only. A cluster can match at both ends and break in the middle — check every gap.
• Forgetting that Z is followed by A. Wrap-around clusters look broken until you count past Z.
• Assuming the odd one is the one that looks different. At Level 2 all four clusters look alike; the odd one differs by one step.

Solved Examples — SSC CGL Letter Classification Questions

How the Letter Classification Chapter Tests Work

• 25 questions per test, with a full question palette — answered, skipped, marked for review, not visited.
• Every question type in every level — the formats of this chapter are spread across the tests so no pattern is missed.
• Optional 15-minute timer — with the clock to build exam speed, without it while you are still learning the chapter.
• Marking: +2 correct, −0.5 wrong, 0 unattempted — the same scheme as the real paper.
• Solutions, shortcut tricks and concept notes open after you submit, question by question — every wrong option is explained too.
• English and हिंदी, chosen at the start of every test.
• Free with a TrickySSC account — sign in once with Google or your mobile number, and every test is open to you.

How to Prepare Letter Classification for SSC CGL

1. Convert letters to numbers. A = 1 to Z = 26 turns every cluster into a number pattern.
2. Check every step, not the ends. Write the gaps between neighbouring letters under the cluster.
3. Learn the opposite-letter rule. Positions of opposite letters always add to 27.
4. Count past Z. Remember Z is followed by A, so X, Y, Z, A, B is a run with +1 steps.
5. Look for a second rule at Level 2. If all four share the first gap, compare the second gap, the total or the order.
6. Do Level 1 untimed first, then with the 15-minute clock. Move to Level 2 once Level 1 is steady, and then check yourself on a previous year paper.

Related SSC CGL Reasoning Chapters

Letter classification shares its skill — reading the steps of a pattern — with letter analogy, series and coding-decoding. Practising them together makes each one faster.

All SSC CGL Chapter Wise Tests

Every chapter below has its own free Level 1 and Level 2 tests with full solutions.

SSC CGL Letter Classification Questions — Frequently Asked Questions

More Free SSC CGL Practice