6 carpenters make 96 windows in 16 days. If 8 carpenters work for 4 days how many windows will they make?

Seema’s present age is four times her son’s present age and four seventh of her father’s present age. The average of the present age of all three of them is 32 years. What is the difference between the Seema’s son’s present age and Seem’s father’s present age?

Ram has 5 daughters. The average age of these 5 sisters is 28 years. The youngest one is 16 years old. What was the average age of the 4 daughters before the youngest one was born?

If for a certain quantity of books, the publisher has to pay Rs. 30,600 as printing cost, then what will be the amount of royalty to be paid for these books?

A milk in vendor has 21 liters of cow milk, 42 liters of toned milk and 63 liters of double toned milk. If he wanted to pack them in cans so that each can contains same liters of milk and does not want to mix any two kinds of milk in a can, then the least number of cans required is : 

The perimeter of a square and a circular field are same. If the area of circular field is 3850 sq meter. What is the area in meter of the square?