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eight beads are strung in a necklace with a clasp, how many ways can the beads be arranged​

Sagot :

Answer:

Correct option is

A

2520

Here 7 beads of different colors taken all at a time can be arranged in (8−1)!=7! ways along a circle.

Further in the case of formation of necklace, the clockwise and anti - clockwise arrangements are same.

Hence, the required numbers formed =

2

1

×7!=

2

1

(5040)=2520

Step-by-step explanation:

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