Question

three fifths of the students in a room are girls. 1/3 of the girls have blond hair. one half of the boys have brown hair. what fraction of all the students are girls with blonde hair ?what fractions are all this book for boys with brown hair ?

Answer 1

3/5 of the students are girls-

1-3/5 = 2/5

2/5 of the students are boys

1/3 of the girls have blonde hair.

So, multiply, the number of girls that have blonde hair (1/3) by the number of girls (3/5)

1/3 * 3/5 = 3 /15 = 1/5

of all students, 1/5 are girls with blonde hair.

For the boys;

1/2 of the boys have brown hair. of all students 2/5 are boys

2/5 * 1/2 = 2/10 = 1/5

Of all students 1/5 are boys with brown hair