The number of  n digit numbers such that no two consecutive digits | Filo
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Class 11

Math

Algebra

Permutations and Combinations

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The number of   digit numbers such that no two consecutive digits are same is

Correct Answer: Option(c)
Solution: There are different digits of which place is  filled in ways, place in ways (since can be included and first digit is not repeated) and so on times.

Thus number of ways is
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