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How many integers between 10000 and 99999 (5 digits), contain only the digits 2,3,4,6 and 8, and no digit appears twice?

How many integers between 10000 and 99999 (5 digits), contain only the digits 2,3,4,6 and 8, and no digit appears twice?

Grade:12th pass

2 Answers

Saurabh Koranglekar
askIITians Faculty 10341 Points
one year ago
Dear student

The number is exclusively formed by 2,3,4,6,8 ie 5 digits no twice appearance

number of ways of arranging is 5!

so total number is 120

Regards

Arun
25763 Points
one year ago
Dear student
 
For no repetition, there will be 5! = 120 numbera.
 
Hope it helps
 
Thanks and regards
Arun

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