If 55 percent of a group of people 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?

Mathematics · High School · Sun Jan 24 2021

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Answered on Mon May 23 2022

Given :

Percent of people that has brown hair = 55%

So 45% do not have brown hair.

Percent of people that doesn't have red hair = 80%

So 20% have red hair.

Those who have red hair as a fraction of those who do not have brown hair = 20/45

= 4/9