What is the purpose of a lock in concurrency control?
To prevent multiple transactions from accessing the same data simultaneously
A person bought an article and sold it at a loss of 20%. If he had bought it at 10% less price and sold it for 7400 more, he would have gained 30%. Find...
A shopkeeper marked his article 25% above its cost price and offered a discount of 30%. If cost price of the article is Rs. 560, then find profit or los...
A trader bought an article for Rs. 1500 and marked it 25% above of its cost price. If he sold it after giving a discount of Rs. 30 then find the profit ...
One article is sold at 10% profit while other is sold at 5% loss such that the difference between their selling prices is Rs. 180. If the cost price of ...
The price of an article marked at 30% above cost price is sold at a profit of 25%. If it were to be sold at a discount of 25%, ind the percentage decrea...
Ajay buys an old desktop for Rs. 6200 and spends Rs. 400 on its repairs. If he sells the desktop for Rs. 7000, his gain percent is
A person earn 18% profit on the marked price. If he quadruple the marked price but gave 40% discount on the new marked price then how much percentage of...
The ratio of difference between the present age of A and B to the present age of B and C is 6:1. 6 years hence, the ratio between the age of A and C is ...
A shopkeeper marked an article P% above its cost price and sold it for Rs. 2160 after giving a discount of 20%. If the ratio of cost price and selling p...
A man purchase some lemons @ 1 lemon for Rs. 2 and same number of lemons @ 2 lemons for Rs. 1 and he sells all of them @ 4 lemons for Rs. 3. Find his pr...
