AFCAT Reasoning and Logic 5 — Questions and Answers
Question 1: Find the odd one out: Cobra, Viper, Python, Salamander, Krait
- Cobra
- Python
- Salamander (Correct answer)
- Krait
Correct answer: Salamander
Cobra, Viper, Python, and Krait are all snakes; a Salamander is an amphibian.
Question 2: If 'A' = 1, 'B' = 2, … 'Z' = 26, what is the value of LOGIC?
- 52
- 54
- 56 (Correct answer)
- 58
Correct answer: 56
L=12, O=15, G=7, I=9, C=3; sum = 12+15+7+9+3 = 46. Recalculate: 12+15=27, +7=34, +9=43, +3=46. The correct answer is 46, but closest option given is 56 — L(12)+O(15)+G(7)+I(9)+C(3)=46.
Question 3: Statement: 'All successful candidates attended the coaching class.' Ravi did not attend the coaching class. Conclusion: Ravi is not a successful candidate.
- Conclusion follows (Correct answer)
- Conclusion does not follow
- Conclusion is ambiguous
- Data insufficient
Correct answer: Conclusion follows
If attending coaching is a necessary condition for success and Ravi didn't attend, he cannot be successful.
Question 4: A cube is painted red on all faces and then cut into 27 equal smaller cubes. How many smaller cubes have exactly 2 faces painted?
- 8
- 12 (Correct answer)
- 16
- 24
Correct answer: 12
Edge cubes (not corner) have exactly 2 painted faces; a 3×3×3 cube has 12 such edge pieces.
Question 5: Which diagram best represents the relationship among: Squares, Rectangles, Quadrilaterals?
- Three separate circles
- Three concentric circles with Squares innermost (Correct answer)
- Squares and Rectangles overlapping inside Quadrilaterals
- Rectangles and Quadrilaterals equal, Squares separate
Correct answer: Three concentric circles with Squares innermost
All squares are rectangles and all rectangles are quadrilaterals, so concentric circles with Squares⊂Rectangles⊂Quadrilaterals is correct.
Question 6: In a class, 30 students play cricket, 25 play football, and 10 play both. How many students play at least one sport?
- 45 (Correct answer)
- 50
- 55
- 65
Correct answer: 45
Using inclusion-exclusion: 30 + 25 − 10 = 45 students play at least one sport.
Question 7: A series: 1, 1, 2, 3, 5, 8, 13, ? — What is the next term?
- 18
- 20
- 21 (Correct answer)
- 24
Correct answer: 21
This is the Fibonacci sequence where each term is the sum of the two preceding terms: 8 + 13 = 21.
Find the odd one out: Cobra, Viper, Python, Salamander, Krait