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If 55 percent of a group have brown hair and 80 percent of the same group do not have red hair what fraction of those who do not have brown hair have red hair?
Wiki User
∙ 14y ago
20 % of group have red hair (100-80), or say 20 persons. 55 have brown, and there is a total of 100 persons. 100-55= 45 do not have brown, so 20/24 =5/6
Sounds right.
Wiki User
∙ 14y ago
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