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Polymerase chain reaction (abbreviated PCR) is a laboratory technique for rapidly producing (amplifying) millions to billions of copies of a specific segment of DNA, which can then be studied in greater detail.
A merchant bought a product for Rs. ‘a’ and marked it 120% above its cost price. He then sold it after giving two successive discounts of 600 and 10...
The combined cost price of two items, P and Q, is Rs. 10,000. The cost price of Q is equal to the selling price of P. Item P is m...
A shopkeeper bought article ‘A’ for Rs. ‘x’ and marked it 20% above its cost price and sold it for Rs. 1500. Marked price of article ‘B’ is ...
The marked price of an article is Rs. 130 more than its cost price. The article is sold at 50% discount such that the seller earns a profit of Rs. 25. F...
A shirt is marked 20% above the cost price and sold after a discount of Rs.100 at Rs.476. Find the cost price of the shirt.
The marked price of an article is Rs 1500. A shopkeeper sells it by giving 20% discount on its marked price. If the cost price of the article is Rs 991....
A costs twice as much as B. A is sold at a loss of 15% and B is sold at 5/4th of its price. If selling price of A is Rs. 1350 more than selling price of...
'S' purchased two bags of rice for a total of Rs. 2,000. He sold one of the bags at a profit of 32%, and the other at a loss of 12%. If the overall prof...
If a pen is bought at 11/12th of its selling price and sold at 10% more than its selling price, what will be the percentage profit?
The ratio of the cost price of an article to its selling price is 2:3. The marked price of the same item is Rs. 2,100 whereas the sum of the discount of...
