Math, asked by jeesujoby, 6 days ago

how many 3 digit number can be formed by using the digits 1ti 9 if no digits in repeated

Answers

Answered by shakshipankaj14

0

Step-by-step explanation:

Required number of numbers = number of permutations of 9 digits taking 3 at a time

=

9

P

3

=

(

9

×

8

×

7

)

=

504.

Hence, the required number of numbers = 504.

Answered by gautamsneha854

1

Answer:

Hence, the required number of numbers = 504.

Step-by-step explanation:

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