Find-the-number-of-subsets-of-1-2-3-2000-the-sum-of-whose-elements-is-divisible-by-5-

Question Number 120090 by bramlexs22 last updated on 29/Oct/20

F i n d t h e n u m b e r o f s u b s e t s o f

{1, 2, 3, \dots, 2000} t h e s u m o f

w h o s e e l e m e n t s i s d i v i s i b l e b y 5