A library has 1025 books in all. Out of this 205 books are on Science, 164 books are on philosophy. Find the % of
Philosophy book.

Reema has 24 notebooks and 18 books. Find the ratio of notebooks to books.

In a school library, there are 780 books of English and 364 books of Science. Ms. Yakang, the librarian of the school wants to store these books in shelves such that each shelf should have the same number of books of each subject. What should be the minimum number of books in each shelf?

In a school library, the ratio of mathematics books to Science books is the same as the ratio of Science books to Hindi books. If there are 450 books in Science and 300 books in Hindi, find the number of books in Mathematics.

A library has 6 copies of one book,4 copies of each of two books, 6 copies of each of three books and single copies of 8 books. The number of arrangements of all the books 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?