1000 chips are situated in a row. Each of the chips is either black or white. It is known that whatever two white chips are considered, the number of chips between them is not equal to 12 (possibly it is 0). What is the largest possible number of white chips in the row?
1000 chips
2 whites are considered, 12 are not white
2w: 12w'
12w'= blacks
so, their ratio is
2:12
1:6
1/7*1000= 142.9
=143
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