Q63 / 150 · MHT CET 2021 (21 Sep Shift 1) · Mathematics

The number of ways in which 8 different pearls can be arranged to from a necklace is

A
40320
B
5040
Correct answer
C
2520
D
1260

Solution

Number of necklaces formed from 8 different pearls $$ =\frac{(8-1) !}{2}=7 \times 6 \times 5 \times 4 \times 3=2520 $$

Hence, the correct answer is option: 'C'.

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