The number of ways in which 5 mathematics 4, physcis 2, chemistry books can be aranged in a shelf so that the books of each subject are kept together is

The number of ways in which 5 mathematics , 4 physics , 2 chemistry books can be arranged in a shelf so that the books of mathematics books are kept together is

In how many ways 4 mathematics books , 3 physics books, 2 chemistry books and 1 biology book can be arranged on a shelf so that all books of the same subjects are together ?

The number of ways that 5 mathematics , 3 physics and 2 chemistry books can be arranged so that the three physics books kept together and the two chemistry books not together is

The number of ways that 5 Mathematics,3 Physics and 2 Chemistry books can be arranged so that the three physics books kept together and the two chemistry books not together is

The number of ways in which 4 books on Mathematics and 3 books on English can be placed in a shelf, so that the books on the same subject always remain together is

The number of ways in which n books can be arranged on a shelf so that two particular books are not together is

The number of ways in which 6 Telugu, 4 Hindi and 3 English books be placed in a row on a shelf so that the books of the same subject should remain together is

5 Engineering , 4 Mathematics and 2 Chemistry books are placed on a shelf at random. The probability that the books of each kind are all together is

In how many ways 3 books of Mathematics,4 books of Physics and 2 books of Chemistry can be arranged on a table if all the books of one subject placed together?