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.
How many of of the girls with long brown hair have green eyes.
3/5 * 1/3?
what i1 4/5 *3/4 * 1/3 ?
I get 1/5
To find the number of girls with long brown hair who have green eyes, we need to follow the given information step by step.
First, we know that 4/5 of all the girls in the class have brown hair. So, let's say there are a total of 100 girls in the class. With this assumption, we can calculate the number of girls with brown hair:
Number of girls with brown hair = 4/5 * 100 = 80 girls
Next, we know that 3/4 of the brown-haired girls have long hair. So, we need to find 3/4 of the 80 girls with brown hair:
Number of girls with long brown hair = 3/4 * 80 = 60 girls
Finally, we are told that 1/3 of the girls with long brown hair have green eyes. So, we need to find 1/3 of the 60 girls with long brown hair:
Number of girls with long brown hair and green eyes = 1/3 * 60 = 20 girls
Therefore, there are 20 girls with long brown hair who have green eyes.