A vessel contains 60 litres of milk. 12 litres of milk taken out from it and replaced with water. Then again form mixture, 12 litres is taken out and replaced with water. The ratio of milk and water in the resultant mixture is :

If the radius of a right circular cylinder is decreased by 50% and its height is increased by 60%, its volume will be decreased by

The number 45789 is divisible by which of the single digit number: 

Aarif, Arun and Abraham can do a work in 12, 20 and 24 days, respectively. They all begin together. Aarif leaves the work 1 day, Arun 3 days and Abraham 4 days before its completion. In how many days is the work finished?

If the population of a town is 12.000 and the population increases at the rate of 10% per annum, then find the population. after 3 years.

Rita bought a television set with 20% discount on the labeled price. She made a profit of Rs. 800 by selling it for Rs. 16,800. The labeled price of the set was 

In the given figure, two squares shown in the figure have the arm of 12 cm and 8 cm. then find out the area of shaded part?