WBCS 2021 Mains (General Studies Paper-IV) Prev. Yr. Paper (24-May-2022)

Direction: Read the following information carefully to answer the question.
* A family consists of six members, namely A, B, C, D, E and F.
* B is the sister-in-law of C's mother.
* C is the sister of F.
* A is the father of D and F is the grandson of A.
* There are three male members in the family.

Who is the aunt of F?

Find the largest possible number that may divide each of two numbers whose sum is $1394$, given that neither component number is zero or equal to each other.

Which of the following values is the greatest?

If $\sec \theta =\csc \varphi$ and $0^{\circ }<(\theta ,\varphi )<90^{\circ }$, then the value of $\sin (\theta +\varphi )$ is:

If the surface areas of two spheres are in the ratio $4:9$, then the ratio of their volumes will be: