Logic:

64 × (4/4) = 64

64 × (3/4) = 48

48 × (2/4) = 24

24 × (1/4) = 6

Hence, option B is the correct answer.

After carefully observing the figures given in the question, it is very clear that the answer figure(A) will be the missing figure.

Hence, option A is the correct answer.

Option A. 236(2+3+6=11) : 325(3+2+5=10) : 263(2+6+3=11)

Option B. 189(1+8+9=18) : 198(1+9+8=18) : 819(8+1+9=18)

Option C. 761(7+6+1=14) : 617(6+1+7=14) : 176(1+7+6=14)

Option D. 416(4+1+6=11) : 641(6+4+1=11) : 461(4+6+1=11)

Hence, option A is the correct answer.

Given, x : y : z = 2 : 1 : 3
Let, x = 2m, y = 1m and z = 3m
So, 
= 
= 
= 5 : 2 : 10

Simplifying the value by using BODMAS :

=

=

=

= 18

● Xenon is used as an anesthetic agent.

● It is a colorless, dense, odorless noble gas and it is the brightest Gas on Earth.

● Noble gases are all odourless, colourless, monatomic gases with very low chemical reactivity.

* Sikkim has bagged the award for being Most Film Friendly State at the 67th National Film Awards on March 22, 2021.

* During the award ceremony, "An Engineered Dream" won Best Film in Non-Feature Film category and "Marakkar-Arabikkadalinte-Simham" won Best Feature Film award.

* The National Film Awards is the most prominent film award ceremony in India.

* The Awards were first presented in 1954.

* The phenomena of Total Internal Reflection takes place when angle of incidence is greater than critical angle.

* Critical angle is the angle of incidence beyond which the ray of light passing through the denser medium to the surface of the less dense medium and is no longer refracted, but totally reflected.

* Total internal reflection is used in following fields:

a) In Internet cables

b) In Endoscopy

c) Optical fibre cables are based on TIR concept

d) In microscopes, telescopes, periscopes etc.

● Chalukya Dynasty was associated with Aihole Inscription.

● Chalukya Dynasty was a Classical Indian royal dynasty that ruled large parts of southern and central India between the 6^th and 12^th centuries.

● A celebration called Chalukya utsava, a three-day festival of music and dance, organised by the Government of Karnataka is held every year at Pattadakal, Badami and Aihole.