Arrange 2/3; 4/5; 1/2; 3/4 in descending order :

The sum of two numbers is 45 and their ratio is 7: 8. The two numbers are:

When a number is increased by 28, it becomes 107% of itself. What is the number?

If the curved surface area of a right circular cone is 10010 sq cm and its slant height is 91 cm, find its total surface area.

Two men can complete a work in 9 days. How many men will be required to complete twice the work in 12 days?

A sum is divided among 120 men and some women in the ratio 15:21. If each man gets Rs. 5 and each woman gets Rs. 4, the number of women is

A group consists of 25 men and 20 women. The average weight of men is 48 kg and that of women is 30 kg. The average weight of the group is

A shopkeeper bought goods for Rs. 2025. He sold $$ {1\over 5}$$ th of it at 20% profit and the remaining at the profit of 5%, the profit per cent on the whole is