The ratio of non-winners in group A to non-winners in group B is; 85:212
Group A contains 255 people;
Since two-thirds of the people in group A are winners;
Hence, the number of non-winners in group A is; 255 -170 = 85.
Also, since there are 170 winners in Group B also, the number of non-winners in group B is;
Ultimately, the ratio of non-winners in group A to non-winners is group B is; 85:212.
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