- Quantitative and Math Reasoning 15 of 50
- Verbal Reasoning 15 of 50
- Logic and Deductive Reasoning 13 of 50
- Clerical Speed and Accuracy 8 of 50
Free · 2026 · 13 of 50 questions on this practice test Wonderlic Logic and Deductive Reasoning practice questions
Logic and Deductive Reasoning: 13 of 50 questions on this practice test. Answer 10 questions (6 on Logic and Deductive Reasoning) and see your score by domain and your weakest area. Free, no sign-up.
Five sit in a row. Kim is at the left end, Max at the right end. Oz sits next to neither of them. Lou is right of Ned. Who is second from the right?
Tap an answer, or press A to E
Number and letter series, syllogisms, if-then reasoning, ordering puzzles and calendar logic.
What the Wonderlic-style cognitive ability test tests in Logic and Deductive Reasoning
- Number series (arithmetic, geometric, growing gaps, alternating, squares/cubes, interleaved)
- Letter series and alphabet position
- Syllogisms (all / some / none; which conclusion must be true)
- Conditional reasoning (if-then rules, converse and inverse traps)
- Ordering and ranking puzzles
- Deductive puzzles (positions, must-be-false, simple counting)
- Date and calendar logic; letter-shift codes
High-yield logic and deductive reasoning facts
- Series: write the gaps under the terms. A constant gap means arithmetic. Gaps that grow by a fixed amount mean a second-level pattern. Gaps that multiply mean a geometric series.
- If the series goes up and down, check every other term. It is often two interleaved series or alternating operations.
- Fibonacci-type series: each term is the sum of the two before. Check whether the last term = the two before it added.
- Letters: convert to numbers using the anchors E=5, J=10, O=15, T=20, Y=25. Reverse position = 27 − n. Opposite pairs sum to 27 (A–Z, B–Y, M–N).
- Letter series example: B, E, H, K, ? = 2, 5, 8, 11 → 14 = N.
- Letter-shift code: find the shift from one letter pair, confirm with a second, then apply. If CAT → FDW (+3), then DOG → GRJ. Wrap past Z: Y + 3 = B.
| Pattern | Example | Next |
|---|---|---|
| Arithmetic (+4) | 7, 11, 15, 19 | 23 |
| Geometric (×2) | 3, 6, 12, 24 | 48 |
| Halving (÷2) | 96, 48, 24, 12 | 6 |
| Growing gaps (+1, +2, +3…) | 2, 3, 5, 8, 12 | 17 |
| Alternating operations (×2, +3) | 1, 2, 5, 10, 13 | 26 |
| Interleaved (odd terms +2, even terms −2) | 1, 20, 3, 18, 5, 16 | 7 |
| Squares + 1 | 2, 5, 10, 17, 26 | 37 |
| Cubes | 1, 8, 27, 64 | 125 |
The full Wonderlic High-Yield Cram Sheet comes with full prep.
Common logic and deductive reasoning traps
- Reversing 'All A are B' into 'All B are A'.
- Reading 'some' as 'not all'.
- Using real-world knowledge instead of only the given statements.
- Converse trap: seeing Q and concluding P.
- Inverse trap: seeing not-P and concluding not-Q.
- Linking A to C through 'some' B ('All A are B; some B are C').
- Checking only the first gaps of a series when the pattern alternates or interleaves.
- Off-by-one letter positions; use the anchors E5, J10, O15, T20, Y25.
Free Wonderlic logic and deductive reasoning practice questions
Question 1
Which letter is 5 letters after the letter that comes 4 letters before I?
- AK
- BN
- CJ
- DI
Show answer and explanation
Answer: C. 4 before I is E; 5 after E is J.
Why not A: Off by one: this is 6 after E, not 5.
Why not B: This skips the "4 before" step.
Why not D: Off by one: this is only 4 after E (the starting letter was counted).
Remember: Net move: -4 + 5 = +1. Move I by 1 letters in one step.
Question 2
What is the next number? 4, 16, 64, 256, ?
- A1,023
- B448
- C1,025
- D1,024
Show answer and explanation
Answer: D. The rule is multiply by 4, so the next term is 1,024.
Why not A: One less than the next term; recheck the last step.
Why not B: This adds the last gap instead of multiplying by 4.
Why not C: One more than the next term; recheck the last step.
Remember: Divide a term by the one before it: always 4.
Question 3
What number comes next? 10, 17, 26, 37, 50, ?
- A63
- B65
- C67
- D66
- E64
Show answer and explanation
Answer: B. The rule is square numbers plus 1, so the next term is 65.
Why not A: This repeats the last step (+13), but the rule does not keep the step fixed.
Why not C: Two more than the next term.
Why not D: One more than the next term; recheck the last step.
Why not E: One less than the next term; recheck the last step.
Remember: Recognize squares (1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144) shifted by +1; the gaps are odd numbers growing by 2.
Question 4
Uma was born after Vera. Wes was born before Vera. Xena was born after Uma. Who is the oldest?
- AWes
- BVera
- CXena
- DUma
Show answer and explanation
Answer: A. Born earliest means oldest; order oldest to youngest: Wes, Vera, Uma, Xena.
Why not B: Vera was born after Wes, so she is younger than Wes.
Why not C: Xena was born last, so she is the youngest; "born after" means younger, not older.
Why not D: Uma was born after Vera, so she is third oldest.
Remember: Translate first: born before = older. Then line up by birth: Wes, Vera, Uma, Xena. Earliest is oldest.
Question 5
Which letter group comes next? EV, FU, GT, HS, ?
- AHR
- BRI
- CIS
- DIQ
- EIR
Show answer and explanation
Answer: E. The rule: the first letter moves forward one, the second moves back one.
Why not A: The first letter must move forward to I.
Why not B: Right letters, wrong order.
Why not C: The second letter must also move back one more.
Why not D: The second letter moves back only one step at a time.
Remember: Track each position separately: first letters E F G H go forward, second letters V U T S go back.
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