Question : If the cost price is Rs. 150 less than the selling price and the profit is 20%, then what is the selling price (in Rs.)?

Question : The selling price of a radio was Rs. 255 when a 15% discount was allowed. Then, the marked price of the radio was _______.

Question : In an office, there are 108 tables and 132 chairs. If $\frac{1}{6}$th of the tables and $\frac{1}{4}$th of the chairs are broken, how many people can work in the office if each person requires one table and one chair?

Question : A businessman bought an article and sold it at a loss of 5%. If he had bought it for 10% less and sold it for Rs. 33 more, he would have had a profit of 30%. The cost price of the article is:

Question : 12 copies of a book were sold for Rs. 1700, thereby gaining the cost price of 3 copies. The cost price of a copy of the book is: