A sells an article to $B$ at a profit of $20 \%$ and $B$ sells it to $C$ at a loss of $10 \% .$ If $C$ pays $Rs.\,540$ for it, at what price did A buy?

A shopkeeper listed the price of goods at $30 \%$ above the cost price. He sells half the stock at this price, one fourth of the stock at a discount of $15 \%$ and the remaining at $30 \%$ discount. His overall profit is.......$\%$

A dealer fixed the price of an article $40 \%$ above the cost of production. While selling it he allows a discount of $20 \%$ and makes a profit of $Rs.\, 48$. The cost of production (in $Rs.$) of the article is

Seema sells a pen to Sapna at a profit of $25 \% .$ Sapna sells it to Asha at a profit of $10 \%$ and Asha sells it to Kavita at a profit of $5 \%$. If Asha sells it for $Rs.\,231,$ find the cost price at which Seema bought the pen? (in $Rs.$)

A fan costing $Rs. 1200$ is being sold for $Rs. 1500$. What is the profit percent?

By selling a book for $Rs.$ $360,20 \%$ profit was earned. What is the $CP$ of the book in $Rs.$?