Delhi Police SI 2024 June 27 Shift 1 Question Paper

A man wants to cover a distance of $1\text{km}$ in a river. It takes him $12\text{minutes}$ to cover this distance in still water, but it takes $13\text{minutes}$ in the flowing river. Find the speed of the flowing water of the river.

A can do a piece of work in $20$ days and B can do the same work in $30$ days. If they work together on it for $2$ days, then what fraction of the work will be left?

What is the value of the following expression?
$$52-[18÷3+3+(18-11)\text{ of }4]$$

Tangents $AP$ and $AQ$ are drawn from an external point $A$ to a circle with center $O$. If $\angle APQ=40^{\circ }$, then find $\angle POQ$.

Study the given table and answer the following question. The table shows the number of students studying in 6 different classes of 6 different schools:



The number of students studying in class X from school P is approximately what percent of the total number of students studying in class X from all schools together?