At what price should a shopkeeper mark a radio that costs him $Rs.\,1200$ in order that he may offer a discount of $20 \%$ on the marked price and still make a profit of $25 \% ? \quad$ 

The marked price of a watch was $Rs.\, 720 .$ A man bought the same for $Rs.\, 550.80$ after getting two successive discounts, the first being $10 \% .$ What was the second discount rate? (in $\%$)

A shopkeeper sells rice at $10 \%$ profit and uses weight $30 \%$ less than the actual measure. His gain percent is

A vendor bought toffees at $6$ for a rupee. How many for a rupee must he sell to gain $20 \% ?$

If a company sells a car with a marked price of $Rs$ $272000$ and gives a discount of $4 \%$ on $Rs$ $200000$ and $2.5\%$ on the remaining amount of $Rs$ $72000,$ then the actual price charged by the company for the car is (in $Rs.$)

A shopkeeper sold an article offering a discount of $5 \%$ and earned a profit of $23.5 \% .$ What would have been the percentage of profit earned if no discount was offered?