Explanation

Cost of 3 books is 320 rs. Cost of 6 books is 320 x 2 = 640 rs.

Explanation

As per constitution of 1962, president was the Chief Executive of Pakistan.

Explanation

Haider Ali won the first-ever Gold Medal for Pakistan In Paralympics 2020.

Pakistani athlete Haider Ali belongs to Gujranwala city.

Haider Ali threw a 55.26 meters throw in his fifth attempt out of the total six.

Explanation

ضیاءالددین سلہری پاکستانی مصنف تھے جو 1999 میں کراچی میں انتقال کرگئے تھے۔

Explanation

The Caribbean Community (CARICOM) is an intergovernmental organisation of 15 member states.

Explanation

James Peebles is given for the theoretical discoveries in physical cosmology, and Michel Mayor and Didier Queloz for discovering an exoplanet orbiting a solar-type star.

Explanation

DC stands for 'direct current' which means the current only flows in one direction.