The population of a town $2$ years ago was $62500$. Due to migration to big cities,it decreases every year at the rate of $4\%$. The present population of the town is:

If $P \%$ of $P$ is $36,$ then $P$ is equal to

In expressing a length $81.472 \, km$ as nearly as possible with three significant digits,find the percentage error?

Starting with $8000$ workers,the company increases the number of workers by $5 \%$,$10 \%$,and $20 \%$ at the end of the first,second,and third year,respectively. The number of workers in the fourth year is:

In Mumbai,$60 \%$ of the registered voters are $BJP$-supporters and the rest are Congress-supporters. In a mayoral race,if $75 \%$ of the registered voters who are $BJP$-supporters and $20 \%$ of the registered voters who are Congress-supporters are expected to vote for candidate $X$,what percent of the registered voters are expected to vote for candidate $X$?

Two numbers are less than a third number by $30 \%$ and $37 \%$,respectively. How much per cent is the second number less than the first?