1.

In how many ways 6 books out of 10 different books can be arranged in a book-self so that 3 particular books are always togetherPlease explain the answer to this sum

Answer»

Answer:

10080

Step-by-step explanation:

CONSIDERING 3 books as together as 1

4 books are arrangef AMONG 8 BOKS in 8p4 ways =1680

now the 3 books are arranged among themselves in 3 FACTORIAL ways =6

total nos of ways =1680×6=10080 ways



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