Level:
Project ID:
9000139708
Accepted:
1
Clonable:
0
Easy:
0
The shelf contains \(15\)
books. From this amount, \(9\)
books are in English and \(6\)
books in other languages. Find the number of possibilities how to rearrange the
books on the shelf, if all English books have to be on the left and the other on the
right.
\(9!\, 6!=261\:273\:600\)
\(9^{6}=531\:441\)
\(\frac{9!}
{6!}=504\)
\(\frac{9!}
{6!\, 3!}=84\)