A $TV$ set is being sold for $Rs.$ $x$ in Chandigarh. A dealer went to Dellini and bought the $TV$ at $20 \%$ discount (from the price of Chandigarh). He spent $Rs.\, 600$ on transport. Thus he sold the set in Chandigarh for $Rs.$ $x$ making $14 \frac{2}{7} \%$ profit. What was $x$ in $Rs.?$

A shopkeeper allows a discount of $10 \%$ on the marked price of a camera. Marked price of the camera, which costs him $Rs.\, 600,$ to make a profit of $20 \%$ should be (in $Rs.$)

By selling an article at $\frac{3}{4}^{t h}$ of the marked price, there is gain of $25 \%$. The ratio of the marked price and the cost price is

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 $Rs.$)

If a shopkeeper wants to give $20 \%$ discount on a toy, he has to sell it for $Rs.\,300.$ If he sells it at $Rs.\,405,$ then his gain percent is

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