Explanation

Explanation

Sum of the ages of 3 friends =3×23= 69 years

Sum of the ages of 4 friends =4×23= 92 years

∴ Age of 4th friend = 92 years - 69 years = 23 years.

Explanation

ECO Headquarters: Tehran

ECO stands for Economic Cooperation Organization 

Explanation

PVC, or Polyvinyl Chloride, is a widely used synthetic plastic polymer.

It commonly found in pipes, cables, and other construction materials due to its durability and flexibility.

Explanation

Paid= 3/5

Remaining = 1 – 3/5 = 2/5

Given conditions:

2/5 x Total amount = 400

⇒       Total amount = 1000

Explanation

• Avg of 6 numbers = 30
• Sum of 6 numbers = 6 x 30 = 180
• Avg of first 4 numbers = 25
• Sum of first 4 numbers = 4 x 25 = 100
• Avg of last 3 numbers = 35
• Sum of last 3 numbers = 3 x 35 = 105
• Now, let's find the 4th number:
• Sum of first 3 numbers = Sum of first 4 numbers - 4th number
• = 100 - 4th number
• Sum of first 3 numbers = Sum of all 6 numbers - Sum of last 3 numbers
• = 180 - 105
• = 75
• So, 75 = 100 - 4th number
• 4th number = 100 - 75
• = 25

Explanation

Confusion

Urdu is the national language of Pakistan since 14 August 1947.

In 1954 Urdu and Bengali were declared the national language of Pakistan.

The 1973 Constitution recognizes Urdu as Pakistan’s only national language. 

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Urdu declared as official language In subcontinent in 1832

Explanation

·         As of January 2019, the list totals 790 projects

·         OBOR stand for One Belt One Road

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·         What Is One Belt One Road (OBOR)?

·         OBOR, the brainchild of Chinese President Xi Jinping, is an ambitious economic development and commercial project spread across the continents of Asia, Africa, and Europe.

·         Dubbed as the “Project of the Century” by the Chinese authorities, OBOR spans about 78 countries.

Explanation

Explanation

Joe Biden is the 46th and current president of the United States 

Important Question "Joseph Robinette Biden Jr":

Joseph Robinette Biden Jr. is an American politician

Born: November 20, 1942

Joe Biden was inaugurated on January 20, 2021.

Joe Biden belongs to the state of Pennsylvania