If selling price of 80 articles is equal to the cost price of 100 articles, then find the gain percentage.

X sold an article to Y at a profit of 18%. Later on, Y sold it back to X at a profit of 40%, thereby gaining ₹ 118. How much did X pay for the article originally?

By selling 32 apples for Rs 30, a man loses 25%. How many apples should be sold for Rs 24, to gain 20% in the transaction?

A trader sold half of his articles at 60% profit, half of the remaining at 20% loss and the rest was sold at the cost price. In total transaction his gain % or loss % will be:

If selling price of an article is $\frac{7}{6}$ of its cost price. Then the profit percentage in the transaction is:

The owner of a garment shop labelled his articles at 25% above the cost-price. Due to a slump in the market, his cost price was reduced by 5% but he keeps the marked price same. He thus offers a discount of 8%, due to which the sales increase by 25%. Calculate the change in owner's profit?

By selling an article for Rs. 100, a man gains Rs. 20. Then his percentage gain is ?