$A$ 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?

$40 \%$ of $20 \% + 30 \%$ of $25 \% + 50 \%$ of $28 \%$ is equivalent to:

Two numbers are $90 \%$ and $75 \%$ lesser than a third number. By what percentage should the first number be increased so that it becomes equal to the second number?

If $10 \%$ of $x$ is $3$ times $15 \%$ of $y,$ then find $x: y.$

If $12 \%$ of $x$ is equal to $6 \%$ of $y,$ then $18 \%$ of $x$ will be equal to how much per cent of $y$ ?

The average marks obtained in a class of $50$ students is $70 \%$. The average of the first $25$ students is $60 \%$ and that of the next $24$ students is $80 \%$. What is the percentage of marks obtained by the last student?