I have a column in a table that can contain the value between 25 and 60, 61 and 86, 87 and 112 etc.

How would I write a DECODE function to return a 1, 2 and 3 depending on the value of this column?

25 -> 60, return 1
61 -> 86, return 2
87 -> 112, return 3

Thanks in advance, Keith