Explanation

Microwaves are a form of wireless communication.

Optical fiber, coaxial cable, and twisted pair wire are all physical transmission media for data communication.

Explanation

The Camp David Accords were hosted by Jimmy Carter, the US President at the time.

The talks, held in September 1978, facilitated peace agreements between Egypt and Israel.

Explanation

SABENA was the national airline of Belgium from 1923 to 2001

Its operations began on 23 May 1923 

Ceased on 7 November 2001

operations: (operations transferred to Delta Air Transport, which later became SN Brussels Airlines)

Explanation

Mirza Ghalib, one of the greatest Urdu and Persian poets.

He was born in Agra on 27 December 1797.

He passed away on 15 February 1869 in Delhi.

Explanation

The arithmetic mean, also known as the average, is calculated by adding the two numbers and dividing by 2:

(4+6)/2 = 10 /2=5
So, the arithmetic mean between 4 and 6 is 5.

Explanation

یہ محاورہ کسی چیز کے نقصان یا خرابی کے نتیجے میں ہونے والی مالی یا اخلاقی ذمہ داری کو ظاہر کرتا ہے۔

اس محاورے میں "بل" کا مطلب ہے "نقصان" یا "ذمہ داری"۔

Explanation

The historical Greenwich meridian passes through :

• England
• France
• Spain in Europe,
• Algeria
• Mali
• Burkina Faso
• Togo
• Ghana in Africa,
• Antarctica at the South Pole.

Greenwich is an area in south-east London, England

It lies on the south bank of the River Thames in the historic county of Kent.

It is famous for the Prime Meridian (0° longitude).

It is used as the reference for Greenwich Mean Time (GMT).

Greenwich is famous for calculating the time for all countries.

Explanation

Harriet Tubman (c. 1822 - 1913) was an American abolitionist, political activist, and former slave.

She escaped to freedom in the North and worked tirelessly to help hundreds of enslaved African Americans escape through the Underground Railroad.

Born into slavery in Maryland, USA, she dedicated her life to fighting against slavery and advocating for women's suffrage.

Explanation

We know that the difference of their squares is 84, so we can write the equation:

(x+2)^2 - x^2 = 84

Expanding the equation, we get:

x^2 + 4x + 4 - x^2 = 84

Simplifying the equation, we get:

4x + 4 = 84

Subtracting 4 from both sides, we get:

4x = 80

Dividing both sides by 4, we get:

x = 20

So, the two consecutive even numbers are 20 and 22.

The sum of these numbers is:

20 + 22 = 42

Explanation

Profit = 25 rupees

Selling Price = 250 rupees

To find the percentage of profit, divide the profit by the selling price (not the cost price):

Percentage of Profit = (Profit ÷ Selling Price) × 100

= (25 ÷ 250) × 100

= 10%

So, Ahmed got a 10% profit on each article.