If the selling price is tripled and cost price doubled the profit would become $65 \% .$ What is the present profit (in $\%$)?
$20$
$20$
$25$
$10$
A man buys two chairs for a total cost of $900.$ By selling one for $\frac{4}{5}$ of its cost and the other for $\frac{5}{4}$ of its cost, he makes a profit of $90$ on the whole transaction. The cost of the lower priced chair is (in $Rs.$)
A sells a suitcase to $B$ at $10 \%$ profit. $B$ cells it to $C$ at $30 \%$ profit. If $C$ pays $Rs.\, 2,860$ for it, then the price at which A bought it is (in $Rs.$)
A reduction of $21 \%$ in the price of an item enables a person to buy $3\, Kg$ more for $Rs.\,100.$ The reduced price of the item per $Kg$ is (in $Rs.$)
If selling price is doubled, profit triples. Find the profit percent.
A man buys an article for $Rs.\;27.50$ and sells it for $Rs.\, 28.60.$ Find the gain percent?