Explanation

Ahmed and Sana must sit together.

Hina cannot come after Sana, so Hina must be before Sana.

The arrangement that satisfies the given conditions places Ali at the last position.

Last verified on 11-07-2026

Explanation

For n people sitting around a circular table:

Number of arrangements = (n − 1)!

For 10 people:

(10 − 1)! = 9! = 362,880

Last verified on 11-07-2026

Explanation

The pattern adds 4 each time:

3 + 4 = 7

7 + 4 = 11

11 + 4 = 15

Last verified on 11-07-2026

Explanation

Pattern: n + n = 2 × n²

2 + 2 = 2 × 2² = 2 × 4 = 8

3 + 3 = 2 × 3² = 2 × 9 = 18

4 + 4 = 2 × 4² = 2 × 16 = 32

5 + 5 = 2 × 5² = 2 × 25 = 50

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Explanation

• Fish survival decreases due to the decomposition of organic matter.
• When organic matter increases, bacteria decompose it and consume dissolved oxygen.
• Low oxygen levels make it difficult for fish to breathe.
• This can lead to fish stress or even fish kills.
• Excess organic matter also reduces overall water quality.

Last verified on 11-07-2026

Explanation

• Geobacillus stearothermophilus is the standard biological indicator used to test the effectiveness of an autoclave.
• Its heat-resistant spores are difficult to kill, making them ideal for sterilization testing.
• If the spores are destroyed, the autoclave is functioning properly.
• It is widely used in hospitals, laboratories, and pharmaceutical industries.

Last verified on 11-07-2026

Explanation

• Mahmoud Abbas is the current President of the State of Palestine.
• He is also known by his kunya (nickname): Abu Mazen.
• He has served as President since 15 January 2005.
• He is also the President of the Palestinian National Authority (PNA).
• He is a senior leader of the Fatah movement.

Last verified on 11-07-2026

Explanation

• Prophet Muhammad (ﷺ) is mentioned in the Torah (Torat) by the name "Tayyab".

Additional information:

Name "Muhammad" in the Holy Qur'an (4 Times):

1. Surah Aal-e-Imran (3:144)
2. Surah Al-Ahzab (33:40)
3. Surah Muhammad (47:2)
4. Surah Al-Fath (48:29)

Name mentioned in the Qur'an: Ahmad

• Surah: As-Saff (61:6)
• Meaning of Ahmad: "The Most Praised"
• Mentioned in the Qur'an: Once
• Glad tidings given by: Prophet Isa (A.S.)

Last verified on 11-07-2026

Explanation

• In Artificial Intelligence (AI), an agent moves from an initial state to a goal state using State-Space Search.

Common search algorithms include:

• A* (A-Star)
• BFS (Breadth-First Search)
• DFS (Depth-First Search)

These algorithms help the agent find a path or solution efficiently.

Last verified on 11-07-2026

Explanation

The arrow starts facing North.

It makes 23 turns, alternating between 90° and 180°.

After completing all 23 movements, the arrow faces West.

Last verified on 11-07-2026