An article is sold at a discount of $20 \%$ on the marked price. In order to gain $60 \%$ on the marked price,at how much more percent of the discounted price should it be sold?

Sameer spends $24 \%$ of his monthly income on food and $15 \%$ on the education of his children. Of the remaining salary,he spends $25 \%$ on entertainment and $20 \%$ on conveyance. He is now left with $₹ 10736$. What is the monthly salary of Sameer?

Peter earned $40\%$ more money than Albert. Albert earned $20\%$ less than Michael. Peter earned more than Michael by: (in $\%$)

Akash scored $73$ marks in subject $A$. He scored $56 \%$ marks in subject $B$ and $X$ marks in subject $C$. Maximum marks in each subject were $150$. The overall percentage marks obtained by Akash in all three subjects together was $54 \%$. How many marks did he score in subject $C$?

Evaluate $28 \%$ of $450 + 45 \%$ of $280$.

$\frac{3}{4}$ of $\frac{2}{3}$ of $\frac{1}{5}$ of a number is $249.6$. What is $50\%$ of that number?