Find the number of ways in which 8 different beads can be arranged to form a necklace.  Choose the correct choice
A) 30 B) 20 C) 2520 D) 60 E) 80
Since in forming a necklace clockwise and anticlockwise arrangements are not different, therefore,8 beads can be arranged to form a necklace in(8-1)! /2ways   = 7*6*5*4*3*2/2= 
<gadget id="calculator">7*6*5*4*3*2/2</gadget>
<output>2_520</output>
2520 ways   Answer is 2520
<result>C</result>
Find the number of ways in which 8 different beads can be arranged to form a necklace.