During one year,the population of a town was increased by $5 \%$ and during the next year,the population decreased by $5 \%$. If the total population is $9975$ at the end of the second year,then what was the population size in the beginning of the first year?

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

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.

$A$ spider climbed $62 \frac{1}{2} \%$ of the height of the pole in one hour and in the next hour it covered $12 \frac{1}{2} \%$ of the remaining height. If the height of the pole is $192 \, m$,then the distance climbed in the second hour is:

$A, B,$ and $C$ shared $Rs. 18500$ such that $A$ received $25\%$ more than $B$ and $B$ received $20\%$ more than $C$. What amount did $A$ receive?

The product of one-third of a number and $150 \%$ of another number is what percent of the product of the given numbers?