A) 40
B) 60
C) 80
D) 100
Correct Answer: A
Solution :
Required number of arrangements = (Total number of arrangements) - (Number of arrangements in which N?s are together) \[=\frac{6!}{2!\,\,\times \,\,3!}-\frac{5!}{3!}=60-20=40\].You need to login to perform this action.
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