The sum of the number of boys and girls in a school is $150$. If the number of boys is $x$,then the number of girls becomes $x\%$ of the total number of students. The number of boys is

One number is $25 \%$ of another number. The larger number is $12$ more than the smaller. The larger number is

In an examination,$65 \%$ of students passed in Civics and $60 \%$ in History,while $40 \%$ passed in both of these subjects. If $90$ students failed in both History and Civics,then what is the total number of students?

The price of an article was first increased by $10 \%$ and then again by $20 \%$. If the final increased price is $₹ 33$,what was the original price?

The sum of two numbers is $\frac{28}{25}$ of the first number. The second number is what percent of the first (in $\%$)?

What percent of $12$ is $84$?