A person bought 8 quintals of rice for certain rupees. After a week, he sold 3 quintals of rice at 10% profit, 3 quintals of rice with neither profit nor loss and 2 quintals at 5% loss. In this transaction what is the profit? 

A crate of fruits contains one spoiled fruit for every 25 fruits. 60 % of the spoiled fruit were sold. IF the seller had sold 48 spoiled fruits, then the number of fruits in the crate were:

In a factory, the salary of each worker is increased in the ratio 22 : 25 but the number of workers is decreased by $$ 26{2\over3}\% $$. The net effect on the salary is: 

Two trains of equal length take 10 seconds and 15 seconds respectively to cross a telegraph post. If the length of each train be 120 meters, in what time (in seconds) will they cross each other traveling in opposite direction?