Question

What faction of the girls in the class have long brown hair and green hair? 3/4 of the girls have brown hair,3/4 of the girls have long hair and 1/3 of the girls have green eyes

Answer 1

A similar problem to yours is attached in the picture below. We adjust the data of the problem in the picture to fit your question.

The answer is (3/4)*(3/4)*(1/3) = 3/16 of the girls in the class have long brown hair and green eyes

Explanation:

As every condition must contain the set we are studying, we are talking about and AND condition, and thus we need to multiply each term to get the correct result.

3/4 * (3/4) * (1/3) = 3/16