Question

A group of boys and girls took a test. Exactly 2/3 of the boys and exactly 3/4 of the girls passed the test. If an equal number of boys and girls passed the test, what fraction of the entire group passed?

Answer 1

number of girls = g
number of boys = b
(2/3)b = (3/4)g
Solve:
((2/3)b + (3/4)g) /(b+g)

Answer 2

Substitution should work. Solve the first equation for one variable and substitute in for that variable in the second equation. Let me see your attempt. =)

Answer 3

i dont know how to do that

Answer 4

Give it a shot.

Answer 5

...

Answer 6

what do you substiturte it for?