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

Explanation

• A macro is an automated sequence of commands used to perform repetitive tasks quickly in software applications.
• It saves time by executing multiple steps with a single command.
• Commonly used in MS Word, Excel, and other office software.
• It can be recorded or programmed by the user.

Last verified on 21-06-2026

Explanation

• The correct preposition with “interested” is in.
• So, the correct sentence is: He is interested in reading books.

Last verified on 05-05-2026

Explanation

• A firewall’s main function is to prevent or block unauthorized access to a computer network.
• It acts as a security barrier between trusted and untrusted networks (like the internet).
• It filters incoming and outgoing network traffic based on security rules.
• It helps protect systems from hackers and unwanted access attempts.

Last verified on 10-06-2026

Explanation

• Sentence is in Present Continuous Tense (is reading).
• Passive form uses is/am/are + being + past participle.
• So: A book is being read by him.

Last verified on 15-05-2026

Explanation

• The sentence "She wrote a letter" is in past simple tense.
• The passive voice of a past simple sentence is formed as:
• Object + was/were + past participle + by + subject
• So, "A letter was written by her." is correct.

Last verified on 04-05-2026

Explanation

• Surah Ar-Rahman is called Aroos-ul-Quran (Bride of the Quran).
• “Ar-Rahman” means The Most Merciful / Beneficent.
• Surah Number: 55
• Verses: 78
• Type: Makki Surah
• Theme: Blessings of Allah
• Repetition: Famous repeated verse 31 times

Additional information:

• Surah Yaseen is called the Heart of the Quran.

Last verified on 12-06-2026

Explanation

• Election Year: 1945–46 (Winter elections)
• Total Seats: 1585
• Congress Seats: 923 (58.23%)
• Muslim League Seats: 425 (26.81%)
• Other parties/independents: 237 (approx.)
• Purpose: Provincial legislative representation in British India

Last verified on 24-05-2026

Explanation

• In indirect speech, past simple “was” usually remains “was”.
• Reporting verb “said” does not change in this case.
• So the correct conversion is: He said he was busy.

Last verified on 15-05-2026