Permutation and CombinationHard
Question
The number of necklaces which can be formed by selecting 4 beads out of 6 beads of different coloured glasses and 4 beads out of 5 beads of different metal, is-
Options
A.6P4 × 5P4 ×
B.6C4 × 5C4 ×
C.6C4 × 5C4 ×
D.6C4 × 5C4 × 7!
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