1.

Solve the following question:

Answer»

It depends on n,

For n = 1, the number of ways = 1 = 1!

For n = 2, the number of ways = 2 = 2!

For n = 3, the number of ways = 7 = 3! + 1

For n = 4, the number of ways = 48 = 2 x 4!

.........

Varies when n changes.



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