Hemant purchased $120$ rims of paper at $Rs.\,80$ per rim. He spent $Rs.\,280$ on transportation, paid octroi at the rate of $40$ paise per rim and paid $Rs.\,72$ to the coolie. If he wants to have a gain of $8 \%,$ the selling price per rim must be (in $Rs.$)

A trader mixes three varieties of groundnuts costing $Rs. \,50, Rs.\, 20$ and $Rs.\, 30$ per $k g$ in the ratio $2: 4: 3$ in terms of weight and sells the mixture at $Rs.\, 33$ per $kg .$ What percentage of profit does he make?

If on selling $12$ note books, a seller makes a profit equal to selling price of $4$ notebooks. What is his percent profit?

If a commission at the rate of $10 \%$ is given to a bookseller on the marked price of a book by the publisher, the publisher gains $20 \%$. If the commission is increased to $15 \%$ then the gain percent would be

After selling $5 \%$ of a quantity of sugar, $5\, kg$ of sugar remains. Find the total quantity of sugar. in $kg$

If the cost price is $96 \%$ of the selling price, then what is the profit percent?