Question : A trader buys an article at 80% of its marked price and sells it at a 10% discount on its marked price. His percentage profit is:

Option 1: $10 \frac{1}{2}$

Option 2: $10$

Option 3: $12 \frac{1}{2}$

Option 4: $15$

Question : A shopkeeper increases the selling price of an article by 15%. After increasing the selling price, he noticed that the profit percentage changed from 5% to 15%. The percentage increase in the cost price is:

Option 1: 20%

Option 2: 10%

Option 3: 15%

Option 4: 5%

Question : Two successive discounts, each of $x\%$ on the marked price of an article, are equal to a single discount of INR 331.20. If the marked price of the article is INR 920, then the value of $x$ is:

Option 1: 20%

Option 2: 15%

Option 3: 25%

Option 4: 18%

Question : The profit obtained on selling an article for Rs. 310 is equal to the loss incurred on selling that article for Rs. 230. What will be the loss percentage when the selling price is Rs. 180?

Option 1: $16\frac{1}{3}$

Option 2: $16\frac{2}{3}$

Option 3: $33\frac{1}{3}$

Option 4: $33\frac{2}{3}$

Question : An article was sold at a certain price. Had it been sold at $\frac{4}{5}$ of that price, there would have been a loss of 10%. At what profit percentage was the article sold initially?

Option 1: 10.5

Option 2: 15

Option 3: 12.5

Option 4: 10