MDCAT Logical Reasoning — Letters and Symbol Series
Letters and Symbol Series is a core Logical Reasoning topic in the PMDC MDCAT syllabus, covering 8 subtopics. Below are the subtopics to revise, how often the topic appears in past papers, and real past-paper MCQs to try.
Subtopics (8)
- Alpha-Numeric Series
- Alphabetical Series
- Analogies
- Coding-Decoding
- Geometric Number Series
- Letter and Symbol Series
- Number Series
- Odd One Out
How Letters and Symbol Series is tested
Across the 16 MDCAT past papers on ParhaiKrlo, Letters and Symbol Series accounts for 4 questions. It appears in 4 of them, about 1 questions a paper. The heaviest was MDCAT 2025, with 1 question.
| Paper | Questions |
|---|---|
| MDCAT 2025 | 1 |
| MDCAT 2024 | 1 |
| MDCAT 2023 | 1 |
| MDCAT 2022 | 1 |
Letters and Symbol Series MCQs from the MDCAT past papers
Try each one before opening the answer. Each comes with a short explanation.
- Q1 · MDCAT 2025 · Letters and Symbol Series
What will come next? 1, 4, 2, 5, 3, 6, 4, 7, ?
- A.5
- B.6
- C.7
- D.8
Show answer
Answer: A. 5 — The next number in the sequence 1,4,2,5,3,6,4,7,? is 5.
- Q2 · MDCAT 2024 · Letters and Symbol Series
Observe the pattern and select the next term, in the sequence: JEQ, HEO, FEM
- A.GFN
- B.DEK
- C.GEL
- D.DFK
Show answer
Answer: B. DEK — The pattern's first and third letters each decrease by 2 down the alphabet, giving the next term 'DEK'.
- Q3 · MDCAT 2023 · Letters and Symbol Series
Observe the pattern and select the next term in the sequence: SSSSS, SSRSS, SRQRS, RQPQR
- A.RQOQR
- B.QRORQ
- C.RQPOPQR
- D.QPOPQ
Show answer
Answer: D. QPOPQ — Following the pattern's letter-substitution logic, the next term in the sequence is QPOPQ.