Find the number of ways in which 3 different beads can be arranged to form a necklace.  Choices.
A) 30 B) 20 C) 1 D) 60 E) 80
Since in forming a necklace clockwise and anticlockwise arrangements are not different, therefore,3 beads can be arranged to form a necklace in(3-1)! /2ways   = 2/2= 
<gadget id="calculator">2/2</gadget>
<output>1</output>
1 way   Answer is 1
<result>C</result>
Find the number of ways in which 3 different beads can be arranged to form a necklace.