Step-by-step explanation:
The number of books in French language = 6
The number of books in Russian language = 8
The number of Spanish books = 5
So, in total there are 19 books in 3 different languages F , R and S.
Now, the books are to be arranged in such a way that each language books are stacked together.
The possible number of ways to do it is :
1. French, Russian , Spanish.
2. French, Spanish, Russian.
3. Russian , Spanish, French.
4. Russian , French , Spanish.
5. Spanish, French, Russian.
6. Spanish, Russian, French.
So,there are total 6 ways to arrange the books in the desired manner.
Hence, there are 6 possible ways to arrange the books in a row on a shelf with all books of the same language grouped together.
