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Q.The number of ways of dividing 20 distinct objects into 4 groups of 5 each (groups unlabelled) is

a
20!(5!)4\dfrac{20!}{(5!)^4}
b
20!(5!)44!\dfrac{20!}{(5!)^4 4!}
c
20!5!4!\dfrac{20!}{5! 4!}
d
20!(5!)3\dfrac{20!}{(5!)^3}

Correct Answer: Option B

The correct solution involves applying the fundamental concept to derive the final value step by step...

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