find the number of ways in which 10 different flowers can be arranged to form a garland?

• the formula for number of ways in which n different flowers arrang to form a garland is (n-1)!/2
  (10-1)!/2
  9!/2
  181440
• 12 years agoHelpfull: Yes(2) No(0)
• why 9! is divided by 2?
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• it is 9! divided by 2...because...as it is a garland it is a circular situation so (10-1)!...divided by 2 is for garland situation only as all the flowers in the garland are same..when viewing in both directions is same...
• 12 years agoHelpfull: Yes(0) No(0)