Question

Two-fifths of the students in central middle school are boys. One third of the girls have blonde hair and one quarter of the boys have blonde hair.

(A) what fraction of the students in central middlev school have blonde hair.
(B) if 36 of the students of central middle school have blond hair, then how many total does central middle school have.

PLEASE HELP

I did number one but i think its wrong

Answer 1

Answer: A: 3/10 of the school has blonde hair. B: there are 120 students

Step-by-step explanation: I might have done this wrong but anyway, I multiplied 2/5 by 1/4 and got 1/10, meaning 1/10 of the boys have blonde hair. I multiplied 3/5 (because 5/5 - 2/5 = 3/5) by 1/3 and got that 2/10 of the girls are blonde. I added these, and got that 3/10 of the school are blondes. That's A. Then, I set up the equation 3/10 = 36/x (x equals the total number of students in the school). When I solved it I got x = 120, meaning there are 120 students in the school.