Explanation

Check all 3 against the rules:

Rules:

1. G and H must go together

2. J and K cannot be together

3. G and M cannot be together

F, K, M, N = VALID

No G, so Rule 1 and 3 are not triggered

Only K is there (not J), so Rule 2 is fine.

Correct answer is F, K, M, N

Last verified on 20-10-2026

Explanation

From the given information:

1. A reaches before B → A < B

2. B reaches before D → B < D  

3. C reaches before D → C < D

Combine 1 and 2: A < B < D  

Combine with 3: C < D

So D is after both B and C. That means D cannot be last because someone is definitely behind D? Wait no — "last" means finishes after everyone.

From A < B < D, D is after A and B.  

From C < D, D is after C too.

So D finishes after A, B, and C.  

Therefore D certainly finishes last.

Last verified on 03-09-2026

Explanation

• The person moves 15 km north, then 10 km west, then 15 km south.
• The north and south movements cancel out, leaving 10 km west.

Last verified on 01-09-2026

Explanation

Put A at center:

1. B is in the east of A -> B is to the East

2. B is in the north of C -> C is to the South of B, so C is South-East of A

3. C is in the west of D -> D is to the East of C

So D is further East and still South of A.

D is in the South-East direction of A.

Last verified on 20-10-2026

Explanation

• Since all laptops are computers and no computer is a mobile phone, no laptop can be a mobile phone.
• This conclusion follows directly from the given statements.

Last verified on 01-08-2026