Explanation

• From the statements: Usman is ahead of Ahmed, and Ahmed is ahead of Bilal, so the order is Usman → Ahmed → Bilal → Hamza.
• Therefore, Usman is definitely the first among them.

Last verified on 01-08-2026

Explanation

• "My grandfather's only son" = that can only be the person's own father.  
• "The daughter of my father" = that is the person's sister.

Last verified on 01-08-2026

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

Explanation

The statement "All officers are employees" directly proves that every officer is an employee.

The information "Some employees are graduates" does not prove that any officer is a graduate, nor does it mean all graduates are officers.

Last verified on 01-08-2026

Explanation

Let's track his movement step by step. Assume he starts at point O facing North.

1. Walks 25 m forward → Goes North 25 m. Now at point A, 25 m North of O. Still facing North.

2. Turns right and walks 15 m → Right of North is East. Goes East 15 m. Now at point B, 15 m East and 25 m North of O. Now facing East.

3. Turns right again and walks 25 m → Right of East is South. Goes South 25 m. Now at point C, 15 m East and 0 m North/South of O. Now facing South.

4. Turns left and walks 10 m → Left of South is East. Goes East 10 m. Now at point D, 15 + 10 = 25 m East and 0 m North/South of O. Now facing East.

Final position: 25 meters East of the starting point.

Last verified on 01-08-2026