The selling price of an article is four times of its cost price. If the selling price is reduced by ₹300, then the profit becomes 250%. What is the cost price of the article?
The following pie chart gives the measures of the central angles of the sectors that reflect the number of questions in each of 8 different books with respect to the total number of questions in these 8 books taken together.
If the number of questions in the books B3 and B6 taken together is 165, then what is the total number of questions in the 8 books taken together?
J1 can do a piece of work alone in 10 days, J2 can do the same work alone in 12 days, while J3 can do it alone in 15 days. They work together and complete the work, and receive a total of ₹2,250 for doing the work. What is the difference in the shares of J1 and J3 ?
Reema went to a shopping mall to buy a gift. She saw a shop giving successive discounts of 50% and 30%, and from there selected a gift whose MRP was ₹1,700. How much did Reema have to pay to buy the gift?