AFCAT Reasoning & Logical Thinking 5 — Questions and Answers
Question 1: A train 150 m long passes a pole in 15 seconds. What is the speed of the train in km/h?
- 36 km/h (Correct answer)
- 40 km/h
- 45 km/h
- 54 km/h
Correct answer: 36 km/h
Speed = 150/15 = 10 m/s; converting to km/h: 10 × 18/5 = 36 km/h.
Question 2: Which does NOT belong: Eagle, Penguin, Bat, Sparrow, Parrot?
- Eagle
- Penguin
- Bat (Correct answer)
- Sparrow
Correct answer: Bat
Bat is a mammal; Eagle, Penguin, Sparrow, and Parrot are all birds.
Question 3: Complete the analogy: Scalpel : Surgeon :: Baton : ?
- Soldier
- Conductor (Correct answer)
- Painter
- Athlete
Correct answer: Conductor
A scalpel is the primary tool of a surgeon, and a baton is the primary tool of an orchestra conductor.
Question 4: In a code language, PENCIL is written as QFODLM. How is PAPER coded?
- QBQFS (Correct answer)
- QBPFS
- QAQFS
- QBQFR
Correct answer: QBQFS
Each letter shifts +1: P→Q, A→B, P→Q, E→F, R→S, giving QBQFS.
Question 5: Five boxes A, B, C, D, E are stacked. C is above D. B is above C. E is above B. A is below D. What is the order from top to bottom?
- E, B, C, D, A (Correct answer)
- B, E, C, D, A
- E, C, B, D, A
- E, B, D, C, A
Correct answer: E, B, C, D, A
E is above B, B is above C, C is above D, D is above A: the order is E–B–C–D–A.
Question 6: Which number is wrong in the series: 1, 4, 9, 16, 25, 35, 49?
- 4
- 16
- 35 (Correct answer)
- 49
Correct answer: 35
The series is perfect squares (1², 2², 3², 4², 5², 6², 7²); 35 should be 36 (6²).
Question 7: If ROAD is coded as 1234 and LOAD is coded as 5234, what does 12345 stand for?
- ROADL (Correct answer)
- ROADS
- LOADR
- LOARD
Correct answer: ROADL
Mapping: R=1, O=2, A=3, D=4, L=5 (from ROAD=1234 and LOAD=5234); so 12345 = R-O-A-D-L = ROADL.
A train 150 m long passes a pole in 15 seconds.
What is the speed of the train in km/h?