In a group of people solicited by a charity , 30% contributed TK. 40 each, 45% contributed TK. 20 each and the rest contributed TK. 12 each . What percentage of the total contributed came from people who gave TK. 40 ?

35% of Tahia's income is equal to 25% of Noria's income . The ratio of their income is --.

A students first reduced a number by 20% and then increased it again by 20% . If the difference between the tw...

If 4 is subtracted from one-fourth of a number, the result is 20. Which of the following is the number ?

The difference between two numbers is 7 and their product is 60, then one of the two numbers must be __.

A large field of 1400 acres is divided into two parts. The difference of the areas, of the two parts is one-fi...

The area of the floor of auditorium is 600 sq. m. How many unbroken tiles of dimension 10*30 cm2 will be requi...