Explanation

Area left after laying black tiles = [(20 -- 4) $\times$ (10 -- 4)] sq. ft = 96 sq. ft
Area under white tiles = $\left(\frac{1}{3}\times 96\right)sq.ft=32sq.ft$
Area under blue tiles = (96 -- 32) sq. ft. = 64 sq. ft
Number of blue tiles = $\frac{64}{\left(2\times 2\right)}=16$

Explanation

Let AC be the ladder and BC be the wall . Then,

In right $△$ ABC,

$A{C}^2=A{B}^2+B{C}^2$

$A{C}^2=(2.5{)}^2+(6{)}^2$

$A{C}^2=\mathrm{42.25mama}$

$AC=6.5m$

Hence, the length of ladder is 6.5 m.

Explanation

Diameter of car wheel is 84 cm

Circumference of the wheel = 2*pi*r

= 2*22*.42/7

= 2.64 meter

Speed of the car is 72 kmph

Speed in m/sec is 72*5/18 = 20 m/sec

Distance covered in 11 minutes = 20*11*60 = 13200 meter

Number of revolutions in 11 minutes = distance covered in 11 minutes / circumference of the wheel

= 13200/2.64

= 5000 revolutions

Explanation

Abruptly  اچانک

steadily مستقل طور پر

Explanation

Bajaur agency is the largest District of FATA by population.

South Waziristan agency is the largest District of FATA by area.

Explanation

Reverse osmosis is a water purification process

that uses a partially permeable membrane to remove ions,

unwanted molecules and larger particles from drinking water.

Explanation

It was based upon the Mountbatten Plan of 3rd June 1947 and was passed by the British parliament on July 5, 1947.

The Indian Independence Act 1947 was affected from 15 August 1947

Explanation

Commonwealth, also called the Commonwealth of Nations

The Commonwealth of Nations, total 56 member states, the vast majority of which are former territories of the British Empire.

Founded: December 11, 1931

Headquarters: London, United Kingdom

Founders: British Empire, UK Parliament

Explanation

In February 1948, the princely state of Junagadh, located in what is now the Indian state of Gujarat,

was annexed to the Union of India after a dispute with the Dominion of Pakistan.

Explanation