Every student in a class swims, dances, or does both. Three fifths of the class swim and three fifths dance. Five students both swim and dance. How many students are in the class?
mathematics never dies because it always stays in the minds and souls of people who love mathematics.
Those people will not let maths die instead they will die.................
D . kalyan kumar
An expert is a man who has made all the mistakes, which can be made, in a very narrow field.