How many different numbers can you form that are <400 if repetition is permited?
0 is not permitted as the first number, it must be 3 numbers (<99)
99<*
Infinite
Explain?
oops I meant 99<x<400
you should edit the original post
done
Total numbers you can form = total numbers there are between 99 and 400 = 400 - 99 - 1 = 300
Welp thats what I got, apparently thats not it.
Double check if repetition is permitted or not.
It is. "Repetition des chiffres est permise", Repetition of the numbers is permitted
3 digit number smaller then 400
What's the answer?
No idea, that's why I came here, it's a test that I'm correcting so I can redo.
Post the whole question as it is.
Its in French "Le nombre a 3 chiffres est plus petit que 400 et la repetition des chiffres est permis" The 3 digit number is smaller then 400 and repetition of the numbers is permitted
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