Akshay has 30 articles, each having the same cost price. He marked the price of each article at 30% above its cost price. He sold 15 of the articles at a discount of 20% each, and the remaining 15 articles at a discount of 10% each, thereby gaining a total profit of ₹630. What was the cost price of each article?

The marked price of an article is 10 % higher than cost price. A discount of 10 % is given on marked price. In this kind of sale, the seller bears: 

A article is marked at Rs. 65 and a customer buys it for Rs. 56.16 and got two successive discount of 4% and k%. Find the value of   k?

A shopkeeper increases the price of an object by 40 % and then sells it at 25 % discount on the marked price. If the selling price of such an object be ₹ 2100, its cost price for the shopkeeper was? 

A discount of 15 % on one article is the same as discount of 20% on a second article. The costs of the two articles can be:

What is single discount equivalent to two successive discounts of 15% and 20%?

If in a sale, the discount given on a saree is equal to one-fourth of the marked price and the loss due to this discount is 15%, then the ratio of the cost price to the selling price is-

Arvind purchased a wrist watch with 30% discount on the labelled price. He sold it with 40 % profit on the price he bought, what was his percent loss on the labelled price?