In an examination,$65 \%$ of students pass in History and $55 \%$ of students pass in Hindi. If $5 \%$ of students fail in both subjects,what is the percentage of students who passed in both subjects?

If $120$ is $20 \%$ of a number,then $120 \%$ of that number will be

$45 \%$ of $1500 + 35 \%$ of $1700 = ? \%$ of $3175$

The population of a city is $20000$. It increased by $20\%$ during the first year and $30\%$ during the second year. The population after two years will be:

If $\frac{3}{5}$ of a number is $23$ more than $50 \%$ of the same number,then what will be $80 \%$ of the number?

How many students passed in first class?
Statements:
$I$. $85 \%$ of the students who appeared in the examination have passed either in first class,second class,or pass class.
$II$. $750$ students have passed in second class.
$III$. The number of students who passed in pass class is $28 \%$ of those who passed in second class.