permutations and sets

Question

Comments

C should be answer

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given option B

Answer 1

yes answer will be B)

• Number of ways in which $m\times n$ different objects can be divided into n groups

=$\frac{\left ( mn \right )!}{\left ( m! \right )^{n}n!}$

• Number of ways in which $m\times n$ different object can be distributed equally among n persons=$\frac{\left ( mn \right )!}{\left ( m! \right )^{n}}$

https://gradestack.com/General-Aptitude/Permutations-/Division-and-Distribution/15305-3083-6593-study-wtw