Profit, Loss and Discount

If goods be purchased for Rs.840 and one-fourth be sold at a loss of 20% at what gain percent should the remainder be sold so as to gain 20% on the whole transaction?

I bought two books; for Rs.480. I sold one at a loss of 15% and other at a gain of 19% and then I found each book was sold at the same price. Find the cost of the book sold at a loss?

A person bought an article and sold it at a loss of 10%. If he had bought it for 20% less and sold it for Rs.75 less, he could have gained 25%. What is the cost price?

Oranges are bought at 11 for a rupee and an equal number more at 9 a rupee. If these are sold at 10 for a rupee, find the loss or gain percent?

In a bustling marketplace, a vendor advertises a special promotion: a 20% discount on the marked price of an item, but he also levies a 6% sales tax on the discounted price. If a customer pays $480 as sales tax, then what was the original marked price of the item (in dollars)?

A person bought an article and sold it at a profit of 20%. Had he bought it at 20% less, what would have been the profit percentage if the selling price had been the same?

The total cost of a refrigerator with an oven was Rs. 12,000. The oven was sold at a profit of 20% and the refrigerator at a loss of 28%. If the sale price was the same in both the items, then the cost price of the cheaper item was

A crockery shop owner bought 18 mealtime sets, each costing him $25. The marked price of each set was 80% above the cost price. He sold 13 mealtimes sets at the marked price, and each of the remaining sets at a discount of 20% on the marked price. What was the discounted price of each mealtime set, in dollars?

In a utensils store, profit on selling a type of utensil is 260% of the cost. If the cost price of the same type increases by 35% and the selling price of that type remains same, what percentage of the selling price is the profit?

Ganesh bought 50 dozen of pens at Rs. 6 per dozen. He spent Rs. 250 on a particular tax and he sold them at Rs. 1 per each pen. What was his profit or loss percent