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Perplex
IB Math AAHL
/
Counting & Binomials
/
Problem Bank
IB Math AAHL
/
Counting & Binomials
/
Problem Bank

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I'm Plex, here to help with problems on this worksheet!
[Maximum mark: 4]

Pascal is picking a 4 digit code, but decides that her code will either contain only even digits, or only odd digits, and that no digit will be repeated.

Find the number of possible codes.

[4]

To earn a crown, get your answer ready before you reveal the options!

[Maximum mark: 4]

Pascal is picking a 4 digit code, but decides that her code will either contain only even digits, or only odd digits, and that no digit will be repeated.

Find the number of possible codes.

[4]

To earn a crown, get your answer ready before you reveal the options!