Correct Answer: Rajasthan : Jaipur

Solution : Given:
Meghalaya : Shillong (Shillong is the capital of Meghalaya.)

Let's check each option –
First option: Rajasthan : Jaipur; Jaipur is the capital of Rajasthan.
Second option: Bihar : Ranchi; Ranchi is not the capital of Bihar.
Third option: Ahmedabad : Gujarat;

Correct Answer: 1526 AD

Solution : The correct answer is 1526 AD.

The Arab invasions led to the establishment of the Delhi Sultanate. This sultanate flourished for about 300 years. The Delhi sultanate was composed of the following dynasties: slave, Khalji, Tughlaq, Sayyid, and Lodi. At the Battle of

Correct Answer: 9 years

Solution : Given: The current ages of Sonali and Monali are in the ratio 5 : 3.
Five years from now, their ages will be in the ratio 10 : 7.
Let the ages of Sonali and Monali be $5x$ years and $3x$ years respectively.
As

Correct Answer: Jupiter

Solution : The correct answer is Jupiter

A basketball court's width wide, the NASA spacecraft Juno travels in looping, protracted orbits around the massive planet Jupiter. By revealing Jupiter's origin and evolution, Juno is helping us better understand the origins of the solar system. The planet's gravity

Correct Answer: 20

Solution : Given: $x(x+y+z)=20$, $y(x+y+z)=30$, and $z(x+y+z)=50$
Adding all the equations,
⇒ $x(x+y+z) + y(x+y+z) + z(x+y+z) = 20+30+50$
⇒ $(x+y+z)^{2} = 100$
⇒ $(x+y+z) = 10$
Thus, $2(x+y+z) = 20$
Hence, the correct answer is 20.

Correct Answer: (1)

Solution : The first option is the correct choice.

The verb "bother" needs to be in its base form, as modals are followed by the base form of the verb. Here, the modal should be followed by the base form "bother". The question is asking for the

Correct Answer: destroy

Solution : The fourth option is the correct choice.

Destroy is the most appropriate synonym for efface in this context, as it means to eliminate or erase.

The meanings of the other options are as follows:

• Reveal means to make something known or visible, which is the

Correct Answer: Theodore Roosevelt

Solution : The correct option is Theodore Roosevelt.

The Nobel Prize is awarded according to the will of Sir Alfred Nobel. This award is administered by the Nobel Foundation in Stockholm, Sweden. Theodore Roosevelt, the former president of the United States, was the first American

Correct Answer: contaminated

Solution : The correct answer is the fourth option.

"Contaminated" means that something has been polluted or made impure by the addition or presence of harmful or undesirable substances. 

The meanings of the other options are as follows:

Knotted: It refers to something being tied or twisted

Correct Answer: 22.56%

Solution : Let the side of the cube be 10 units.
Surface area of cube, $S_1$ = 6(side)² = 6(10)² 
Side of cube after 12% decrease in size = 10 – 12% of 10 = 8.8 units
New surface area of cube, $S_2$ = 6(side)