Question

*Edited* (thanks Alex!)

In a class, 4/5 of the girls have brown hair. Of the brown-haired girls, 3/4 of the have long hair. Of the girls with long brown hair, 1/3 of them have green eyes.

Question: What fraction of the girls in the class have long brown hair?

Answer 1

of the girls,
brown: 4/5
long brown: 3/4 * 4/5 = 3/5

Answer 2

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