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Mathematics 21 Online
OpenStudy (anonymous):

How many different numbers can you form that are <400 if repetition is permited?

OpenStudy (anonymous):

0 is not permitted as the first number, it must be 3 numbers (<99)

OpenStudy (anonymous):

99<*

OpenStudy (anonymous):

Infinite

OpenStudy (anonymous):

Explain?

OpenStudy (anonymous):

oops I meant 99<x<400

OpenStudy (anonymous):

you should edit the original post

OpenStudy (anonymous):

done

OpenStudy (anonymous):

Total numbers you can form = total numbers there are between 99 and 400 = 400 - 99 - 1 = 300

OpenStudy (anonymous):

Welp thats what I got, apparently thats not it.

OpenStudy (anonymous):

Double check if repetition is permitted or not.

OpenStudy (anonymous):

It is. "Repetition des chiffres est permise", Repetition of the numbers is permitted

OpenStudy (anonymous):

3 digit number smaller then 400

OpenStudy (anonymous):

What's the answer?

OpenStudy (anonymous):

No idea, that's why I came here, it's a test that I'm correcting so I can redo.

OpenStudy (anonymous):

Post the whole question as it is.

OpenStudy (anonymous):

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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