$25 \%$ of $25 \% = ?$

Milk contains $5 \%$ water. What quantity of pure milk should be added to $10$ litres of milk to reduce this to $2 \%$?

Fresh fruits contain $68 \%$ water and dry fruits contain $20 \%$ water. How much dry fruit can be obtained from $100 \,kg$ of fresh fruits?

The population of a city increases at the rate of $5 \%$ per annum. If the present population of the city is $3,70,440$,its population $3$ years ago was:

Out of his total income,Mr. Kapur spends $20 \%$ on house rent and $70 \%$ of the rest on household expenses. If he saves $₹ 1,800$,what is his total income?

$A$ sum of Rs. $2236$ is divided among $A$,$B$,and $C$ such that $A$ receives $25\%$ more than $C$ and $C$ receives $25\%$ less than $B$. What is $A$'s share in the amount?