Correct Answer: 194

Solution : Given, $\mathrm{k}+\frac{1}{\mathrm{k}}=4$,
Squaring both sides, we get
$\mathrm{k}^2+\frac{1}{\mathrm{k^2}}+2(k)(\frac{1}{k})=16$
⇒ $\mathrm{k}^2+\frac{1}{\mathrm{k^2}}+2=16$
⇒ $\mathrm{k}^2+\frac{1}{\mathrm{k^2}}=14$
Again squaring both sides, we get
$\mathrm{k}^4+\frac{1}{\mathrm{k^4}}+2(k^2)(\frac{1}{k^2})=196$
⇒ $\mathrm{k}^4+\frac{1}{\mathrm{k^4}}+2=196$
⇒ $\mathrm{k}^4+\frac{1}{\mathrm{k^4}}=194$
Hence, the correct answer is 194.

Correct Answer: mulching

Solution : The correct answer is mulching.

Mulching involves placing layers of organic, or inorganic material on the bare ground around plants. This layer helps to conserve soil moisture, suppress weed growth, regulate soil temperature, and provide other benefits to the plants and soil.

Correct Answer: Tabla

Solution : The correct option is Tabla.

Ustad Faiyaz Khan was a tabla player of international repute. He was known for his innovative and virtuosic tabla playing. He was also a gifted teacher and trained many students who went on to become successful tabla players in

Correct Answer: Gambusia fish

Solution : The correct answer is Gambusia fish.

Gambusia fish or Gambusia affinis is a freshwater fish which is native to North America. It feeds on the larvae of mosquito which helps to control the growing mosquito population. They are larvivorous fish which helps in the

Correct Answer: 300

Solution : We have to find how many tiles, each 4 decimetre square, will be required to cover the floor of a room 8 m long and 6 m broad.
Here, the area of the floor = (8 × 6) = 48 m²
Now 48 m

Correct Answer: Securities and Exchange  Board of India

Solution : The correct option is Securities and Exchange  Board of India.

SEBI stands for the Securities and Exchange Board of India. It serves as India's securities market's regulatory authority. The main goals of SEBI are to safeguard the interests of stockholders

Correct Answer: Babur and Ibrahim Lodi

Solution : The correct option is Babur and Ibrahim Lodi.

In 1526, the Battle of Panipat took place, pitting Babur, the Mughal Empire's founder, against Ibrahim Lodi, the Delhi Sultan. Babur, with ancestral ties to Timur and Genghis Khan, sought to establish his rule

Correct Answer: no choice but to

Solution : The right option is the fourth option.

The original sentence lacks a necessary conjunction that connects the elements correctly.

The revised sentence, "The soldiers had no choice but to report the loss to their commander", introduces the conjunction but. In

Correct Answer: sunlight

Solution : The correct option is sunlight.

Photosynthesis is the biochemical process by which green plants, algae, and some microorganisms turn sunlight into chemical energy using chlorophyll by synthesising glucose, and other organic molecules in the presence of sunlight. In this process, they utilise carbon dioxide, and

Correct Answer: 14

Solution : Given: $2x - 3y + 6 = 0$
$2x - 3y = -6 $---------(i)
$4x + y = 16$ ---------(ii)
Multiplying equation (ii) by 3
$12x + 3y = 48$ ---------(iii)
Adding (i) and (iii),
$2x + 12x = 48 - 6$
⇒ $14x =