Percentage and Profit & Loss

The length of a rectangle is increased by 25%. By what percentage should the width be decreased so that the area of the rectangle remains unchanged?

At what profit percent must an article be sold so that by selling at half that price, there will a loss of 30%?

What is the original price of a T-shirt, if the sale price after 15% discount is 272?

By selling 20 oranges for one taka a man losses 4%. How many oranges for one taka should he sell to gain 20%?

A shopkeeper marks the price of an article at Tk. 80. What will be the selling price, if he allows two successive discounts of 5% each?

90 is 75 percent of which number given below? 

A merchant has 1000 kg of sugar, part of which he sells at 8% and the remaining at 18% profit. He gains 14% on the whole. Find the quantity of sugar that he sold at 18% profit.

7 is 5% of what number?

3 liters of water is added to 11 liters of a solution containing 42% of alcohol in the water. The percentage of alcohol in the new mixture is -

Peter purchased a machine for TK. 80,000 and spent TK. 5,000 on repair and TK. 1,000 on transport and sold it with 25% profit. At what price did he sell the machine?

Increasing the original price of an item by 10%, then decreasing by 20% and then again increasing the price by 10% is equivalent:

A reduction of 21% in the price of pulse enables a person to buy 10.5 kg more for TK. 100. What is the reduced rate per kg of pulse?

A firm pays fixed costs of Tk. 1500 plus another Tk. 60 for each unit produced. How much can it produce for a budget of Tk. 4,800?

By selling a bicycle for Tk. 2,850 a shopkeeper gains 14%. If the profit is reduced to 8%, then the selling price will be

If 50% of (x - y) = 30% of (x + y), then what percent of x is y?

A trader sells his goods at a discount 20%. He still makes a profit of 25%. If he sells the goods at the marked price only, his profit will be:

A manufacturer sells three products i.e. A, B and C. Product A costs 200 and sells for 250, Product B costs 150 and sells for 180, product C costs 100 and sells for 110. On which product, he has maximum percentage of profit?

In a shipment of 120 machine parts, 5 percent were defective. In a shipment of 80 machine parts, 10 percent were defective. For the two shipments combined, what percent of the machine parts were defective? 

What is the purchase price of an article if the profit by selling it for tk 250 is 25%

In a Bank, 30% of the applicants are from Rajshahi district and 20% of them from Rajshahi city. What percent of the total applicants are from Rajshahi city?