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Modular Arithmetic Question watch

1. Hrhr
2. Could you provide a picture or a link to the example you are talking about? I don't quite understand what you're saying.
3. (Original post by gdickinson_)
If n∈Z then 5 divides one of the following: 4n+5, 4n+5. I need to be able to solve questions of this sort. The way I have been taught is using a sort of table of [n]sub5 containing 0 1 2 3 4 then in the second row [4n]sub5. But I can't understand where the values in the second row come from
http://www.thestudentroom.co.uk/forumdisplay.php?f=38
4. (Original post by Zacken)
Could you provide a picture or a link to the example you are talking about? I don't quite understand what you're saying.
I've posted a picture
5. (Original post by gdickinson_)
I've posted a picture
I don't quite understand, are you sure that the question requires modular arithmetic?

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