find the number of 4 digit. which can be formed the digit 3 4 5 7 8 and 9 where the repetition of number is allowed
Answers
Answered by
1
Answer:
9876
8769
3457
7543
etc
Answered by
0
Step-by-step explanation:
we can't actually
Because taking six numbers we can't wrote a 4 digit number
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