Explanation

Muhammad bin Qasim, an Arab general, attacked Raja Dahir, the last Hindu king of Sindh, in 712 CE.

At that time the age of Muhammad bin Qasim was 17 years.

Raja Dahir was defeated and killed in the Battle of Aror.

Explanation

If 105% of the number = $x$, then the number itself is $frac{x}{1.05}$

Therefore, 42% of the number is:

$$0.42 times frac{x}{1.05} = frac{42}{105} x$$

Explanation

Explanation

A non-traditional security threat refers to issues that are not related to traditional military threats like war or invasion.

Climate change is considered non-traditional

Because it poses a significant threat to Pakistan's stability and security,

But it's not a direct military threat like an invasion

Explanation

The object "my help" becomes the subject in passive voice.

The verb changes to "is needed," and the subject "she" becomes "by her."

Explanation

Prime number: A prime number is a number that can be divided only by one and the number itself.

Example - 2, 3, 5, ..etc.

Formula used:

The arithmetic mean = Sum of all terms/ Number of terms

Calculation:

According to the question,

First 10 prime numbers = 2, 3, 5, 7, 11, 13, 17, 19, 23, 29

The arithmetic mean = (2 + 3 + 5 + 7 + 11 + 13 + 17 + 19 + 23 + 29)/10

⇒ 129/10 = 12.9

The arithmetic mean of the first ten prime numbers is 12.9.

Explanation

Biometric scans are generally considered the most secure security measure

Because they rely on unique physical or behavioral characteristics like fingerprints, facial recognition, or iris scans

Vigilance and layered checks are important security practices, but they are not a single, definitive measure.

They involve a combination of different security techniques like firewalls, access control, encryption

Explanation

Pertussis is commonly known as whooping cough. 

Explanation

Sardar Vallabhbhai Patel  Airport also known as Ahmedabad Airport

It is an international airport serving Ahmedabad, Guajarat and Gandhinagar cities in India.

Explanation

Use the formula:

% decrease = (increase ÷ (100 + increase)) × 100

= (25 ÷ 125) × 100 = 20%

So, to keep the total expenditure the same, consumption must decrease by 20%.