Explanation

Given that the sum of 3, 7, and x is 18:

3 + 7 + x = 18

Combine constants:

10 + x = 18

Subtract 10 from both sides:

x = 8

Now, find the average (arithmetic mean) of 3, 7, and x:

Average = (3 + 7 + x) / 3

= (3 + 7 + 8) / 3

= 18 / 3

= 6

Explanation

Constructivism is a learning theory that suggests learners construct knowledge through experiences and interactions.

It emphasizes active learning, where students build their understanding rather than just receiving information passively.

Explanation

Alexander the Great reached Babylon and died there in 323 BC at the age of 33.

He was a famous Macedonian ruler who expanded his empire across Greece, Egypt, Persia, and India.

Explanation

"The captain" renames or gives more information about "Sarfraz Ahmed," making it an appositive.

A noun in apposition provides extra details about another noun without changing the sentence structure.

Explanation

During his five-year rule from 1540 to 1546.

Sher Shah Suri set up a new civic and military administration.

He issued a coin of silver, weighing 178 grains.

It was also termed the Rupiya.

The silver coin remained in use during the Mughal period, the Maratha era (1674–1818) and in British India, as well.

Explanation

Maulana Mufti Mahmood opposed the unconstitutional actions and military interventions by Iskander Mirza and Ayub Khan.

He was a strong voice for democracy and constitutional rule in Pakistan during their regimes.

Explanation

Porali River is not a part of the Indus River system; it flows in Balochistan and drains into the Arabian Sea separately.

Bolan, Chenab, and Panjkora are all tributaries of the Indus River system in Pakistan.

Explanation

A derived quantity is obtained from fundamental quantities (like mass, length, and time).

Force = Mass × Acceleration (Newton’s Second Law), so it is derived from mass, length, and time.

Explanation

Explanation