$A$ sum of $₹ 731$ is distributed among $A$,$B$,and $C$,such that $A$ receives $25\%$ more than $B$ and $B$ receives $25\%$ less than $C$. What is $C$'s share in the amount?

An engineering student has to secure $25 \%$ marks to pass. He gets $47$ marks and fails by $43$ marks. What are the maximum marks of the examination?

If $200 \%$ of a number is $90,$ then what is the $80 \%$ of that number?

$A, B$,and $C$ invested in a business in the ratio of $3:2:5$ respectively. If $A$ earns $100\%$ more profit than $B$ and $C$ earns $40\%$ more profit than $B$,then what is the share of $B$ in the profit?

If $50 \%$ of $(x-y) = 30 \%$ of $(x+y)$,then what percent of $x$ is $y$?

$A$ man spends $75 \%$ of his income. His income is increased by $20 \%$ and he increases his expenditure by $10 \%$. By what percentage does his saving increase (in $\%$)?