Korn Ferry Assessment Korn Ferry Logical Reasoning 3 — Questions and Answers
Question 1: In a logical diagram, all Circles are Squares, and all Squares are Triangles. Which must be true?
- All Triangles are Circles.
- All Circles are Triangles. (Correct answer)
- Some Squares are not Triangles.
- No Circles are Triangles.
Correct answer: All Circles are Triangles.
If Circles ⊂ Squares and Squares ⊂ Triangles, then by transitivity Circles ⊂ Triangles.
Question 2: The series: 2, 5, 10, 17, 26, ___. What comes next?
- 35
- 37 (Correct answer)
- 33
- 39
Correct answer: 37
Differences are 3, 5, 7, 9, 11 — odd numbers increasing by 2; so 26 + 11 = 37.
Question 3: A manager states: 'If project costs exceed budget, approval is required.' Costs did not exceed budget. What follows?
- Approval was required.
- Approval was definitely not required.
- No conclusion can be drawn about approval. (Correct answer)
- The project was cancelled.
Correct answer: No conclusion can be drawn about approval.
The conditional only guarantees approval when costs exceed budget; the converse is not necessarily true.
Question 4: Five tasks are ranked 1–5 by priority. Task B is higher priority than Task D. Task A is lower priority than Task C. Task C is higher priority than Task B. Which task has the highest priority?
- Task A
- Task B
- Task C (Correct answer)
- Task D
Correct answer: Task C
The chain is C > B > D and C > A, making C the highest among all mentioned tasks.
Question 5: Which argument structure is an example of 'affirming the consequent' (a logical fallacy)?
- If P then Q; P is true; therefore Q.
- If P then Q; Q is true; therefore P. (Correct answer)
- If P then Q; P is false; therefore Q is false.
- If P then Q; Q is false; therefore P is false.
Correct answer: If P then Q; Q is true; therefore P.
Affirming the consequent incorrectly concludes P from Q when the conditional is P→Q.
Question 6: A chart shows sales of 120 units in Q1, 150 in Q2, 135 in Q3, and 165 in Q4. What is the average quarterly sales figure?
- 142.5 (Correct answer)
- 145
- 147.5
- 150
Correct answer: 142.5
(120 + 150 + 135 + 165) / 4 = 570 / 4 = 142.5.
Question 7: Analogy: Compass is to Navigation as Hypothesis is to ___.
- Experiment (Correct answer)
- Conclusion
- Data
- Theory
Correct answer: Experiment
A compass guides navigation; a hypothesis guides an experiment — both are tools that direct an investigative process.
Korn Ferry Assessment Korn Ferry Logical Reasoning 3
In a logical diagram, all Circles are Squares, and all Squares are Triangles.
Which must be true?