In: Statistics and Probability
A bookshelf has space for 6 books. There are 6 different English books and 5 different French books available. If we wish to put 3 English books and 3 French books on the shelf, how many arrangements can be made keeping all books of the same language together?
Solution:
A bookshelf has space for 6 books. There are 6 different English books and 5 different French books available.
we wish to put 3 English books and 3 French books on the shelf,
Arrangements that can be made keeping all books of the same language together is given by,
Consider the 3 English books as one unit and 3 French books as one unit
Then they arrange in ways.
Also, Number of ways that we put 3 English books from 6 different english books is
Also, Number of ways that we put 3 French books from 5 different french books is
So, arrangements that can be made keeping all books of the same language together is,
ways
Number of arrangements = 400
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