Question

In how many ways a garland can be made from exactly 10 flowers

• A. $10!$
• B. $9!$
• C. $2(9!)$
• D. $\frac{9!}{2}$

Answer 1

The correct option is D $\frac{9!}{2}$

A garland can be made from 10 flowers in $\frac{1}{2}(9!)$ ways.
$\{\because nflowersgarlandcanbemadein\frac{1}{2}(n-1)!ways\}$