Explanation

James Watson is an American molecular biologist, geneticist, and zoologist.

In 1953, he co-authored with Francis Crick the academic paper proposing the double helix structure of the DNA molecule. 

ND13-07-2023

Explanation

Let Arun's age be x

Arun's father age be 3x

According to the question

x+3x=56

4x=56

x=456​

x=14

3x=42

Therefore, Arun's age is 14 years and his father's age is 42 years.

Explanation

The United Nations Security Council is one of the six principal organs of the United Nations, charged with ensuring international peace and security, recommending the admission of new UN members to the General Assembly, and approving any changes to the UN Charter.

Explanation

GUN DOWN : shoot someone and kill or injure them.

Explanation

Let Arif’s shear= x

Hafiz’s shear = 4x

Arif’s shear is 1/3 of Haider, it means

Haider shear = 3x

Given condition:

x + 4x + 3x= 2560

              8x = 2560                x = 320 

So arif’s shear = 320

Explanation

=2 % of 6,75,00,000

=2/100 x6,75,00,000

= Rs 1350000

Explanation

By using Flip rule:

So,

A’s 1 day work = 1/10

B’s 1 day work = 1/15

(A+B)’s 1 day work =

(1/10+1/15)= (3 + 2)/30 = 5/30= 1/6 

So together they can complete work in 6 days

Explanation

Mean weight of 6 boys =48 kg.

Let the weight of the 6th boy be a kg.

650+45+50+42+40+a​=48

=>227+a=288=>a=61

weight of the 6th boy =61 kg.

Explanation

Side of a square is increased by 25 % 

Let the  initial side be x

Initial area =x2

New Side =x+4x​=45x​

New area =1625x2​

increase in area =169x2​

∴ % increase =16900​=56.25 %

Explanation

 PLO founded in May 28, 1964, Jerusalem

PLO stand for Palestine Liberation Organization