The cost price of 12 pens is equal to the selling price of 8 pens. The profit percentage is:

If an item is sold for Rs. 270, there is a loss of 10 percent on it , then what will be the cost price of that item?

A loss of 19% gets converted into a profit of 17% when the selling price is increased by Rs. 162. The cost price of the article is 

A wholesaler had 200 dozen of mangoes. He sold some of these mangoes at 20 % profit and the rest at 10 % profit, so that he made 13 % profit on selling all the mangoes. How many mangoes in dozens) did he sell at 20 % profit? 

If the profit on selling an article for Rs. 425 is the same as the loss on selling it for Rs. 355, then the cost price of the article is 

A wholesaler sold a water purifier at a loss of 40%. If the selling price has been increased by Its. 125, then wholesaler will get the profit of 10%. What was the cost price of the purifier?

A trader bought 120 kg of potato at 24/kg. He sold 80 kg of it at 50% profit and the balance at 25% low. Find the total profit or loss? 

A shopkeeper marked the price of an article by 40% above cost price and gave discount of Rs. 224. On the final amount, he charged 10% tax. In the whole transaction, he earned Rs. 158.6. Find cost price of the article.