Out of 3 books on Economics , 4 books on Political Sciences and 5 books on Geography ,how many collections can be made, If each collection consists of
at least one book on each subject?

Out of 3 books on Economics , 4 books on Political Sciences and 5 books on Geography ,how many collections can be made, If each collection consists of exactly one book on each subject,

There are 3 books of mathematics, 4 of science, and 5 of literature. How many different collections can be made such that each collection consists of one book of each subject.

There are 3 books of mathematics, 4 of science, and 5 of literature. How many different collections can be made such that each collection consists of one book of each subject, at least one book of each subject, at least one book of literature.

There are 3 books of Mathematics, 4 of Physics and 5 of English. How many different collections can be made such that each consists at least one book of each subject ?

There are three books of physics, four of chemistry and five of mathematics. How many different collections can be made such that each collection consists of (i) one book of each subject (ii) atleast one book of each subject. (iii) atleast one book of mathematics.

How many selection of 4 books can be made from 8 different books?

There are 6 books on mathematics, 4 books on physics annd 5 books on chemistry in a book shop. The number of ways can a student purchase either a book on mathematics or a book on chemistry, is

A library has 5 copies of one book, 4 copies of each of 2 books, 6 copies of ech of 3 books nad single copies of 8 books. In how many ways cn all books be arranged so that copies of the same book are always together?

There are five books on Mathematics and 6 books on Physics in a book shop. In how many ways can a student buy : (i) a Mathematics book and a Physics book (ii) either a Mathematics book or a Physics book?

There are 8 math's books and 6 science books in a almirah. In how many wayscan 4 books of each subject be selected?