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Note the function, get the value(s) (Posted on 20070428) 

Let f(x) be a function defined on set of non negative integers and taking values in the same set such that f satisfies:
x – f(x) = 19[x/19] – 90[f(x)/90] and, 1900< f(1990) < 2000.
Determine the possible value(s) that f(1990) can take.
NOTE: [n] denotes the greatest integer < = n
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Subject 
Author 
Date 
 Solution  Dej Mar  20070428 21:38:46 
 solution  Charlie  20070428 10:10:39 


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