If the selling price of a product is multiplied by 2, the resulting profit is 6 times the original profit. What is the original profit percentage?

A trader had 16 quintals of wheat. He sold a part of it at 17% profit and the rest at 27% profit, so that he made a total profit of 21%. How much wheat did he sell at 27 % profit? 

Due to increase in the value of eggs by 20 percent, two eggs started getting less at Rs. 24. The current price per dozen of eggs.

An article is sold at a loss of 40%. The nominal amount of loss is approximately what percentage of the selling price of the article?

If a man purchase 11 articles for Rs.10 and sold all the articles at the rate of 10 for Rs.11, the profit percentage will be.

If a vendor sells apples at Rs 170 per kg he suffers 15 % loss. If he sells at Rs 230 per kg, then what is his profit percentage? 

Krishna bought a camera and paid 20 % less than its original price. He sold it at 40 % profit on the price he had paid. The percentage of profit earned by Krishna on the original price was 

The cost price of an article is Rs. 480. If it is sold at a profit of 12.5 percent, what will be the selling price of the article?