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Find number of ways that 8 beads of diff...

Find number of ways that 8 beads of different colors be strung as a necklace.

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The correct Answer is:
2520
Eight different beads can be arranged in a circular form in (8-1)!=7! Ways. Since there is no distinction between the clockwise and anticlockwise arrangement, the required number of arrangements is `7!//2=2520`.
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