Question

COMPREHENSION: What is F's profession? 
Seven persons A, B, C, D, E, F and G are travelling in three vehicles — Swift, Creta, Nexon. 
There are at least two people in each vehicle, and only one male. 
There are two engineers, two doctors, and three teachers.
Given: 
(i) C is a lady doctor and she does not travel with the pair of sisters A and F.
(ii) B, a male engineer, travels with only G, a teacher in a Swift.
(iii) D is a male doctor.
(iv) Two persons of the same profession do not travel in the same vehicle.
(v) A is not an engineer and travels in a Creta.
(vi) The pair of sisters A and F travel in the same vehicle.

• A. Doctor
• B. Data inadequate
• C. Engineer
• D. Teacher

Hint:

For such puzzles, always count professions and cross-check each rule after placing members in vehicles.

Answer 1

The Correct Option is D

Step 1: Analyze B and G in Swift. 
From (ii): B (male engineer) + G (teacher) are in Swift → 2 people. From (iv): No two same-profession people in same vehicle → fine. 
Step 2: Only one male exists. 
From (ii): B is the only male → contradiction with (iii) “D is a male doctor” So (iii) must be wrong unless we interpret “only one of them is a male” as "only one male in each vehicle". But (ii) says “only B and G” in Swift → only B is male. Correct interpretation: Only one male in total among the seven → contradicts (iii). 
But (ii) explicitly says B is male, and (iii) D is also male → contradiction. 
Therefore, likely interpretation is: “Only one male in each vehicle.” → Proceed with assumption: One male per vehicle. 
Step 3: Assign B and G to Swift. 
From (ii): B (Engineer, Male), G (Teacher) in Swift 
Step 4: C is a lady doctor, and not with A and F (sisters) 
From (v): A is not engineer, in Creta 
From (vi): A and F together → A and F in Creta
From (i): C is not with A and F → C is not in Creta
Step 5: Profession rules. 
Total: 2 Engineers (B, ?), 2 Doctors (C, D), 3 Teachers (G, ?, ?) 
B = Engineer, C = Doctor, G = Teacher 
A is not Engineer → A is Teacher or Doctor
D is a male doctor → assign D = Doctor 
C and D = Doctors 
B = Engineer → one engineer remains 
A and F = sisters, together in Creta 
A is not engineer → So F might be engineer or teacher 
Only 2 Engineers total → B and someone else (not A)
Now:
A = Teacher
F = ? 
Only two engineers: B and E/F
C is not in Creta → can't be with A, F
Then C is in Nexon
Vehicles:
Swift: B (Engineer), G (Teacher) 
Creta: A (Teacher), F (?) 
Nexon: C (Doctor), D (Doctor), E (?)
C and D both Doctors → ok So E must be teacher to satisfy rule (iv): No same profession in vehicle → C (Doctor), D (Doctor), E (Teacher) → violates rule So split needed. Let’s revise: Try:
Swift: B (Engineer), G (Teacher) 
Creta: A (Teacher), F (Teacher) 
Nexon: C (Doctor), D (Doctor), E (Engineer)
Now check:
Swift: B (Engineer), G (Teacher) → OK
Creta: A, F both Teachers → OK 
Nexon: C (Doctor), D (Doctor), E (Engineer) → C and D same → violates rule (iv)
So again invalid. Try: Alternative:
Swift: B (Engineer), G (Teacher)
Creta: A (Teacher), F (Engineer) 
Nexon: C (Doctor), D (Doctor), E (Teacher) → same as above
C and D in same profession in same vehicle → violates rule Only way to separate C and D is: C in Nexon, D in Creta Try:
Swift: B (Engineer), G (Teacher) 
Creta: A (Teacher), F (Teacher), D (Doctor)
Nexon: C (Doctor), E (Engineer)
Each vehicle: Swift: Engineer + Teacher → OK 
Creta: Doctor + 2 Teachers → OK 
Nexon: Doctor + Engineer → OK
Professions:
B: Engineer 
G: Teacher 
A, F: Teachers
D: Doctor 
C: Doctor 
E: Engineer
Valid. Hence, F is a Teacher