Posers and Puzzles
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How many 4 digit numbers can be made of the digits 2021?
S.Yorks.England
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@joe-shmo said
How many 4 digit numbers can be made of the digits 2021?
Reveal Hidden Content3*4*2*1=24
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santa cruz, ca.
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S.Yorks.England
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@joe-shmo said
How many 4 digit numbers can be made of the digits 2021?
Of course
Reveal Hidden Content3*3*2*1 =18
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@venda
Your getting there. Thats a step in the right direction.
RSA
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@joe-shmo said
How many 4 digit numbers can be made of the digits 2021?
(3×3×2)/2 = 9. A number can't start with 0 and you have to account for the repeated 2.
I'm out at the moment but I might attempt the Joe Shmo show at some stage!
Edit: I had to remove the hidden feature, as it was messing up the formatting of the contained text. Obviously that's some sort of bug.
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@ashiitaka said
(3×3×2)/2 = 9. A number can't start with 0 and you have to account for the repeated 2.
I'm out at the moment but I might attempt the Joe Shmo show at some stage!
Edit: I had to remove the hidden feature, as it was messing up the formatting of the contained text. Obviously that's some sort of bug.
Correct!
Yeah, the hidden formatting has issues.
It doesn't like multiline replies, and special characters as far as I can tell..there may be others.
S.Yorks.England
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@joe-shmo said
@venda
Your getting there. Thats a step in the right direction.
Ok divide by 2 for the two two's
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@ashiitaka said
A number can't start with 0
As a programmer, I object to this.
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