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

Total expenses of a hostel are partly constant and partly vary directly as the number of boarders. When the number of boarders are $120$ and $100$, the total expenses are $\text{Rs. }2000$ and $\text{Rs. }1700$ respectively. Find the total number of boarders if the total expense is $\text{Rs. }1880$.

It has been seen in a survey of a region that $70$ persons read English newspaper, $73$ persons read Bengali newspaper and $64$ persons read both the papers. If $63$ persons do not read any paper, on how many people has the survey been done?

Referring to question Q.164 in image_b9bd15.png, which of the following logical diagrams correctly represents the relationship between Musicians, Instrumentalists, and Violinists?

The expression $\sqrt{248+\sqrt{52+\sqrt{144}}}$ is equal to:

The compound interest on $\text{Rs. }2,000$ in $2\text{ years}$, if the rate of interest is $4\%$ per annum for the first year and $3\%$ per annum for the second year, will be: