Explanation

Given:

Increment in number = 20% of the number

Decrement in number = 20% of the new number

Concept used:

Net increase or decrease percent = {(Original number or Final number) - (Final number or original number) ÷ Original number} × 100

Calculation:

Let the original number be 100

When the number is increased by 20%

New Number = 100 + 20% of 100

⇒ 100 + 20

⇒ 120

Now, the number is decreased by 20%

Final number = New number – 20% of new number

⇒ 120 – 20% of 120

⇒ 120 – 24

⇒ 96

∴ Net Decrease in percentage = { (100 – 96) / 100} × 100

⇒ {4/100} × 100

⇒ 4%

∴ The net decrease percentage is 4%.

Last verified on 11-07-2026

Explanation

• Ctrl + C in MS Word is used for the Copy command.

Additional information:

• Ctrl + R → Align text to the right
• Ctrl + E → Center align text
• Ctrl + J → Justify paragraph
• Ctrl + L → Align text to the left
• Ctrl + Q → Remove paragraph formatting (reset to default left alignment)

Last verified on 10-06-2026

Explanation

• Sayee is the act of walking or running seven times between the hills of Safa and Marwa in Makkah.
• It is a required ritual in Hajj and Umrah.

Additional information:

• Location: Masjid al-Haram, Makkah
• Performed after: Tawaf (circumambulation of Kaaba)
• Next ritual after Sayee: Hujjaj go to Mina
• Symbolism: Hajar’s search for water for her son, Prophet Ismael (PBUH)

Last verified on 15-03-2026

Explanation

• Observed on: 16 October every year
• Purpose: To raise awareness about food security, hunger, and nutrition
• 2024 Theme: Right to foods for a better life and a better future
• 2025 Theme: Hand in Hand for Better Foods and a Better Future
• Theme 2026: Innovate Today. Nourish Tomorrow

Additional information:

FAO (Food and Agriculture Organization)

• Established on: 16 October 1945
• Founder: United Nations
• Headquarters: Rome, Italy

Last verified on 16-10-2026

Explanation

• The number of spark plugs needed in a diesel engine is zero
• Diesel engines use compression ignition instead of a spark.
• Air is compressed until it is hot enough to ignite the fuel.
• Instead of spark plugs, they use glow plugs to warm the engine when cold

Explanation

جوش ملیح آبادی کو انقلابی خیالات اور جوشیلی شاعری کی وجہ سے "شاعرِ انقلاب" کہا جاتا ہے۔

ان کی شاعری میں آزادی، بغاوت، اور قومی غیرت کے جذبات نمایاں ہوتے ہیں۔

Last verified on 03-06-2026

Explanation

• Manchhar Lake is located in Jamshoro District, Sindh, Pakistan.
• It is approximately 23.5 km (14.6 miles) long.
• It is the largest natural freshwater lake in Pakistan.
• It is part of the Indus River basin.
• The lake receives water from the Kirthar Mountain Range and the Indus River system.

Last verified on 09-07-2026

Explanation

• Presented by: Sir Syed Ahmad Khan
• Famous Speech: Meerut Speech
• Date: 16 March 1888
• Purpose: To explain that Muslims and Hindus were separate nations with different religious, cultural, and social identities.
• Importance: Became the ideological foundation of Pakistan.

Last verified on 10-07-2026

Explanation

• The Battle of Badr is the first battle of Islam
• On 17 Ramadan, 2 AH (March 13, 624 CE)
• "Badr" means "full moon" in Arabic.
• Also called Furqan and The Day of the Criterion.
• Took place in the valley of Badr, located in the Hejazi region
• Muslims: Approx. 313 men (82 Muhajirun and 231 Ansar).
• Quraysh: Approx. 1000 soldiers led by Abu Jahl.
• 82-85 Muhajirun and 231 Ansar (61 from Aws and 170 from Khazraj).
• 2 horses and 70 camels.
• Fourteen Muslims were killed, while 70 Kufar were killed and 70 captured.

Last updated question by NA 22-April-2026

Explanation

• Nitrogen (N₂) → 78%

Additional information:

• Oxygen (O₂) → 21%
• Argon (Ar) → 0.93%
• Carbon dioxide (CO₂) → 0.04% (approximately)
• Other gases → Trace amounts

Last verified on 28-06-2026