SATHEE: Permutations And Combinations Question 245

Permutations And Combinations Question 245

Question: In how many ways can $ mn $ letters be posted in $ n $ letter-boxes

Options:

A) $ {{(mn)}^{n}} $

B) $ m^{mn} $

C) $ n^{mn} $

D) None of these

Show Answer

Answer:

Correct Answer: C

Solution:

Required number of ways are $ n^{mn} $ since each letter may be posted in $ n $ ways.

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Permutations And Combinations Question 245

Question: In how many ways can $ mn $ letters be posted in $ n $ letter-boxes

Options:

Answer:

Solution:

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