Explanation

Let the cost of 1 chair be Rs. x and the cost of 1 table be Rs. y.

From the first set of values, we get: 3x + 2y = 700 ... (i)

From the second set of values, we get: 5x + 3y = 1100 ... (ii)

Multiply equation (i) by 5: 15x + 10y = 3500 ... (iii)

Multiply equation (ii) by 3: 15x + 9y = 3300 ... (iv)

Subtract equation (iv) from equation (iii): y = 200

Substitute y = 200 in equation (i): 3x + 2(200) = 700 => 3x = 300 => x = 100

Finally, find the cost of 2 chairs and 2 tables: 2x + 2y = 2(100 + 200) = Rs. 600

Explanation

• Sir Creek is located between Pakistan & India
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• Sir Creek is located along the southeastern border of the Sindh province of Pakistan and the western border of the Gujarat province in India.
  
• This area is called the Greater Rann of Kutch, a marshland situated along the Arabian Sea.
  
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• Sir Creek is important to Pakistan because: It is environmentally important to prevent coastal wetlands from degradation
  
• About 90 km2 of the lake comes under Pakistan, whilst the majority of the lake i.e. 210 km2, lies within India.
  

Explanation

The transfer of thermal energy from one substance to another that requires no physical medium is called radiation.

Radiation is the process by which thermal energy (heat) is transferred through electromagnetic waves, such as infrared radiation. 

They can occur in a vacuum, such as in the transfer of heat from the Sun to the Earth.

Unlike conduction and convection, which require a physical medium (solids, liquids, or gases), 

Explanation

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Let the number be x

1/4 of the number = 1/4(x) =x/4

1/3 of the number = 1/3(x) =x/3

1/4 of a number subtracted from 1/3 of the number gives 12.

x/3-x/4 =12

x/3×4/4 - x/4×3/3 =12

4x/12 - 3x/12 =12

(4x-3x)/12=12

4x-3x=12×12

Explanation

A hyperlink is a word or phrase in a document that, when clicked.

It directs the user to another document or web page.

Explanation

Namaz commanded in Quran for 700 times.

Salat made compulsory in 10th Nabvi.

Salat Juma became Farz in Madina.

Explanation

A residual-current device (RCD) is widely used in electrical circuits for shock safety.

It detects leakage currents and disconnects the circuit to prevent electric shocks.

Explanation

Recuperate means صحت یاب ہونا

Recover means شفا پانا

Explanation

Adobe Photoshop is the industry standard for photo editing and manipulation.

It offers a wide range of features and tools for:

• Editing and enhancing images
• Retouching and removing blemishes
• Manipulating and transforming images
• Adding text and graphics
• Creating composites and collages

Explanation

Polio is also known as poliomyelitis.

It is a disease caused by the poliovirus.

The virus is usually spread through the fecal-oral route, which includes through contaminated water and food.