SATHEE: Permutations And Combinations Question 267

Permutations And Combinations Question 267

Question: Assuming that no two consecutive digits are same, the number of n digit numbers, is [Orissa JEE 2004]

Options:

A) n!

B) 9!

C) $ 9^{n} $

D) $ n^{9} $

Show Answer

Answer:

Correct Answer: A

Solution:

It is obvious.

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Permutations And Combinations Question 267

Question: Assuming that no two consecutive digits are same, the number of n digit numbers, is [Orissa JEE 2004]

Options:

Answer:

Solution:

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