The ratio $5: 4$ expressed as a percentage is: (in $\%$)

Of the $1000$ inhabitants of a town,$60 \%$ are males of whom $20 \%$ are literate. If,of all the inhabitants,$25 \%$ are literate,then what per cent of the females of the town are literate (in $.5$)?

If a number multiplied by $25 \%$ of itself gives a number which is $200 \%$ more than the number,then the number is:

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

The salary of a person was reduced by $10 \%$. By what percent should his reduced salary be raised so as to bring it at par with his original salary (in $\%$)?

The price of a certain article is $Rs. 15000$. Due to a slump in the market, its price decreases by $8 \%$. Find the new price of the article.