Questions

30 litres of salt solution contains 5% salt. How many litres of water must be added so as to get a resultant solution containing 3%salt?

The process of acquiring oxygen from outside the body and to use it in the process of breakdown of food sources for cellular needs is commonly called______.

A computer always has a

What is the process of conversion of solid state directly to gaseous state called?

The Third Amendment to the Constitution would be violated if 

By definition, Antarctica is considered what type of landscape?

In India, Air Force Day is celebrated on

A machine depreciates in value each year at the rate of 10% of its previous value. However, every second year there is some maintenance work so that in that particular year, depreciation is only 5% of its previous value. If at the end of the fourth year, the value of the machine stands at Rs 1,46,205, then find the value of machine at the start of the first year.