Correct Answer: $2\sqrt{6}-5$

Solution : $\frac{\sqrt{x}-\sqrt{y}}{\sqrt{x}+\sqrt{y}}$
Rationalising the denominator,
$=\frac{\sqrt{x}-\sqrt{y}}{\sqrt{x}+\sqrt{y}} \times \frac{\sqrt{x}-\sqrt{y}}{\sqrt{x}-\sqrt{y}}$
$=\frac{(\sqrt{x}-\sqrt{y})^2}{(\sqrt{x}+\sqrt{y})\times (\sqrt{x}-\sqrt{y})}$
$=\frac{(\sqrt{x}-\sqrt{y})^2}{x-y}$
Putting $x=2$ and $y=3$ in the equation.
$=\frac{(\sqrt2 -\sqrt3)^2}{2-3}$
$=\frac{2+3-2\sqrt6}{-1}$
$=-5+2\sqrt6$
Hence, the correct answer is $2\sqrt6-5$.

Correct Answer: Sapta Sindhu

Solution : The correct option is Sapta Sindhu.

The Sapta Sindhu area, today known as the Punjab region in northern India, was the site of the first Aryan tribes settlements. The Sapta Sindhu area is called for the rivers that run through it: the Indus, Jhelum,

Correct Answer: the art of

Solution : The correct choice is the fourth option.

Explanation: "The art of" is a commonly used phrase to describe teaching a specific skill or technique within an art form. In this context, it accurately conveys that Simon is teaching children the skill or technique

Correct Answer: Cotton

Solution : The correct option is Cotton.

Cotton is the fiber among the options listed that catches fire least easily. Cotton is a natural fiber derived from the cotton plant, and it has a higher ignition temperature compared to synthetic fibers like rayon, nylon, or terricot. Cotton

Correct Answer: VWVBF

Solution : Given:
GLAND is written as GQDOJ, and MEANS is written as VQDHP.

Add 3 to the place value of each letter of GLAND and MEANS and then, reverse the order of the letters to get the required codes.
GLAND→G + 3 = J; L +

Correct Answer: of

Solution : The correct choice will be the first option.

The reason for this choice is that when we assure someone of something, we are guaranteeing them a particular outcome or possession. In this case, the master assures her of success in the examination, indicating that he

Correct Answer: lend

Solution : The second option is the correct answer: lend.

let: to allow someone to use or occupy something, often temporarily.

lend: to give something to someone with the expectation of getting it back, typically money or an item.

borrow: to take something from

Correct Answer: Decreases

Solution : The correct option is - decreases.

In a period, the atomic radius decreases from left to right. Protons are added to the atom's nucleus of the elements, increasing its positive charge and strengthening its pull on the electrons. As a result the size of atom

Correct Answer: owns an expensive cell phone.

Solution : The correct choice is the second option.

The original sentence is not correct because it uses the wrong word with the wrong tense form to show ownership. To convey the intended meaning, the second option is the appropriate choice. It correctly

Correct Answer: The meeting was held upon

Solution : The right option is the fourth option.

The grammatical error is in the phrase "meeting was held upon". The correct preposition to indicate the duration for which the meeting was held is for rather than upon.

Upon is a preposition