Question 1184271
.
<pre>

(i)     in 9! = 9*8*7*6*5*4*3*2*1 = 362880  different ways.


(ii)    in 9*8 = 72 different ways.


(iii)   in  {{{C[9]^5}}} = {{{(9*8*7*6)/(1*2*3*4)}}} = 126  different ways.
</pre>

Solved.