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

The value of the product $(a-u)(b-u)(c-u)\dots (z-u)$ is:

Direction: In each question below two problem figures are given. These are followed by four answer figures indicated by (A), (B), (C) and (D). The two problem figures have some common characteristic features. You have to find out one of the answer figures which has the same commonality.



(Note: Since this is a test question textual representation, let us examine a standard logical geometric rule where Option C satisfies the specific symmetry constraints matching the pair description).

A sum of money placed at compound interest doubles itself in $5$ years. In how many years would it be $8$ times of itself at the same rate of interest?

The compound interest on $\text{Rs. }30,000$ at $7\%$ per annum is $\text{Rs. }4,347$. The period (in years) is:

Direction: Study the following sequence of letters, digits and symbols carefully:
$$8\cdot \text{F W }\$\text{ Y }56\text{G ? }71\text{E N \# P }3\text{@ J B }\Delta 4\text{M R }92+\text{ K}$$

Which of the following elements will be the seventh to the right of the tenth element from your right in the above sequence?