- #1
mwang
- 2
- 0
Hello all,
I came across a question regarding permutations that I found a bit confusing. Please tell me what you think it means
"Choose 4 numbers from 0-9 to comprise a 4-digit code.
1) If number cannot be the same, how many codes can we have"
The way I see it, it means that the digits in the codes cannot be repeated. So basically, the possible codes cannot be 2223; all the digits must be different. Is this what you think too?
Thanks
I came across a question regarding permutations that I found a bit confusing. Please tell me what you think it means
"Choose 4 numbers from 0-9 to comprise a 4-digit code.
1) If number cannot be the same, how many codes can we have"
The way I see it, it means that the digits in the codes cannot be repeated. So basically, the possible codes cannot be 2223; all the digits must be different. Is this what you think too?
Thanks