When an article is sold for tk. 250, the seller makes 25% profit. What is the cost of the article ?

Four students aged 11,9, 7 and 4 share a sum of money in the ratio of their ages . If the youngest student rec...

A company employs 15 persons working 44 hours a week . If 4 persons are ill, how many hours a week would the r...

Three workers can do a job in 12 days. Two of the workers work twice as fast as the third. How long would it t...

The selling price of 8 shirts is equal to the purchase price of 10 shirts . What is the profit margin ?

What amount of money invested would earn interest of TK. 200 over 4 years at 10% simple interest rates ?

If An organization increases its staff salary by 25% . By what percent must it now decrease the salary to retu...