Correct Answer:

Solution : Since the rotation of the figure is not allowed, we will check where the question figure can exactly fit itself in the given option figures.

From the above, it is clear that the given question figure is embedded in the second option figure. Hence, the second

Correct Answer: 2.5 cm

Solution : Given:
A spherical ball of lead, 3 cm in diameter, is melted and recast into three spherical balls.
Radius = $\frac{3}{2}$ cm
So, the volume of the sphere = $\frac{4}{3}\pi r^3=\frac{4}{3}\pi (\frac{3}{2})^3$ cm³
The diameters of two of the new balls are $\frac{3}{2}$

Correct Answer: 30 litres

Solution : Given: A mixture of acid and water contains 20% acid.
The mixture's ratio = $\frac{(\text{20% acid})}{(\text{80% water})}$ = $\frac{20}{80}$ = 1 : 4.
Let there be $x$ litres of acid in the mixture. Additionally, $4x$ litres of water should be added to the mixture.

Correct Answer: 1

Solution : The first option is the correct answer.

"To fly into a rage" means to suddenly become very angry or lose one's temper explosively or uncontrollably. It describes a rapid and intense escalation of anger or fury. In the third part of the sentence, "flowed" must

Correct Answer: $\frac{a^2}{b \sqrt{b^2-a^2}}$

Solution :
Given: $\sin 23^{\circ}=\frac{a}{b}$
To find: $\sec 23^{\circ}-\sin 67^{\circ}$
By using the figure in the form of a perpendicular, base, and hypotenuse.
$\sin 23^{\circ}=\frac{p}{h} =\frac{a}{b}$
So, base$=\sqrt{b^2-a^2}$
$\sec 23^{\circ} =\frac{b}{\sqrt{b^2-a^2}}$
$\sin 67^{\circ}=\frac{\sqrt{b^2-a^2}}{b}$
Putting the values, we get:
$\sec 23^{\circ}-\sin 67^{\circ}$ =$\frac{b}{\sqrt{b^2-a^2}}-\frac{\sqrt{b^2-a^2}}{b}$
= $\frac{a^2}{b \sqrt{b^2-a^2}}$
Hence,

Correct Answer: Bohag Bihu

Solution : The correct answer is Bohag Bihu.

The boisterous celebration, known as the Bohag Bihu or Rongali Bihu, heralds the arrival of spring and the Assamese New Year. Important holidays in Assam include Baikho, Rongker, Baishagu, Bihu, Ali-Ai-Ligang, and Rajini Gabra.

Correct Answer: $\frac{1}{2}(\sqrt{3}+3)$

Solution :
Let A be the position of the aeroplane and B and C be the two milestones.
So, BC = 1 km
$\angle \text{ABD} =$ 45° and $\angle \text{ACD} =$ 60°
Let AD = $h$ km and CD = $x$ km
Now, $\tan 45° = \frac{h}{x+1}$

Correct Answer: C.N. Barnard

Solution : The correct option is C.N. Barnard

Dr. Christiaan Barnard conducted the first successful human heart transplant on December 3, 1967, at Groote Schuur Hospital in Cape Town, South Africa. Louis Washkansky, a 53-year-old grocer with end-stage cardiac disease, was the patient. Denise Darvall, a

Correct Answer: STUV

Solution : Let's check the options –

First option: FEDC; FEDC is in the reverse alphabetical order.

Second option: STUV; STUV is not in the reverse alphabetical order.

Third option: LKJI; LKJI is in the reverse alphabetical order.

Fourth option: RQPO; RQPO is in the reverse alphabetical

Correct Answer: Express

Solution : Given: 

Explosion

Express

Exploit

Expulse

Here, the correct order in the dictionary is given below →

Exploit, Explosion, Express, Expulse

After, reversing the order →

Expulse, Express, Explosion, Exploit

So, after reversing the order the word  Express comes second.

Hence, the second option