CA Foundation doubt
If repetition is allowed then find how many 4 digits numbers can be formed with the digits 0,1,2,3,4,5,6,7,8,9 ? (A)4536 (B)3654 (C) 2598 (D)9000
Asked by Ishuuuuuuuu🥂26 Jun 2024384 views
4 answers
Aaryan · 26 Jun 2024
That's (D)9000 :-( 9×10×10×10) as at 1st place (thousand place) 0 can't be taken to make 4 digit🙂
SOHA · 26 Jun 2024
The answer will be 9x10x10x10
SOHA · 26 Jun 2024
In first place u can't take 0 so u have 9 digits from 2nd onwards u have 10 digits
SOHA · 26 Jun 2024
9000 is the answer
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