Explanation

Boys = 14  

Girls = 18  

Ratio of girls to boys = girls : boys = 18 : 14  

Simplify by dividing both by 2:  

18 : 14 = 9 : 7

Last verified on 28-07-2026

Explanation

The wall = 4 m high  

Distance from wall = 3 m  

Ladder = hypotenuse

Use Pythagoras theorem:  

c² = a² + b²  

c² = 3² + 4²  

c² = 9 + 16  

c² = 25  

c = √25 = 5

Last verified on 28-07-2026

Explanation

• Hollywood is the world's most famous center of the film industry.

Additional information:

• Location: Los Angeles, California, USA
• Country: United States
• Hollywood Sign installed: 1923
• Academy Awards (Oscars) started: 1929
• Famous studios: Universal Pictures, Warner Bros., Paramount Pictures, Walt Disney Studios, Sony Pictures

Last verified on 28-07-2026

Explanation

If y is directly proportional to x, then:  

y = kx, where k is the constant of proportionality

Given x = 2, y = 5:  

5 = k _ 2  

k = 5/2

Now find y when x = 7:  

y = (5/2) _ 7  

y = 35/2

Last verified on 28-07-2026

Explanation

• A horst is an uplifted block of the Earth's crust formed between two parallel normal faults.
• It is created by tectonic forces during crustal extension.
• The adjacent blocks move downward, making the horst appear elevated.

Additional information:

• Graben: Down-faulted block between two normal faults
• Normal fault: Forms due to tensional forces
• Reverse fault: Forms due to compressional forces
• Strike-slip fault: Forms due to horizontal shearing forces

Last verified on 28-07-2026

Explanation

• Slide Sorter View is used to sort, rearrange, copy, and delete slides in Microsoft PowerPoint.
• It displays all slides as thumbnails on one screen.
• You can easily drag and drop slides to change their order.
• It is useful for organizing large presentations.

Last verified on 28-07-2026

Explanation

• The Basic Principles Committee was formed in 1949 to prepare the basic framework of the Constitution of Pakistan.
• It was established by the Constituent Assembly of Pakistan.
• It was chaired by Prime Minister Liaquat Ali Khan.
• The committee was formed on 12 March 1949, following the adoption of the Objectives Resolution.
• Its purpose was to recommend the constitutional principles for the new state.

Last verified on 28-07-2026

Explanation

• Einstein's equation E=mc² shows that mass can be converted into energy and vice versa.
• c: Speed of light = 299,792,458 m/s (≈ 3×10⁸ m/s)
• E: Energy
• m: Mass
• It was proposed by Albert Einstein in 1905 as part of the Special Theory of Relativity.

Last verified on 28-07-2026

Explanation

• The Congress Ministries resigned in November 1939 after Britain declared India a participant in World War II without consulting Indian leaders.
• The resignations occurred between 27 October and 15 November 1939 in protest against the British decision.
• Quaid-e-Azam Muhammad Ali Jinnah observed 22 December 1939 as the "Day of Deliverance" after the Congress ministries resigned.

Last verified on 28-07-2026

Explanation

• Full Name: Pakistan Agricultural Research Council (PARC)
• Headquarters: Islamabad, Pakistan
• Established: 1981
• Parent Ministry: Ministry of National Food Security & Research
• Main Function: Coordinate and promote agricultural research and technology development in Pakistan

Last verified on 28-07-2026